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Real Yahoo amp on Ebay...
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Rich & DJ
"Oil Field Capasaders" are required because the extra oil insulates the
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case of the cap better at 36,000 volts. Rich , kd0zz Question & Answer Answered On34,000 volts, 6 |
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Robert B. Bonner
Tony, you have to be in your rocker first to get off of it.
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This is so typical of CBers. I already told the story of the CB shop near where I lived in the 70's he had a treddle peddle on his wattmeter under the bench. As he "PEAKED" the radios while whistling them up, he'd push the peddle further. HE could peak up a basic rig to 24 watts I hear... BOB DD -----Original Message-----
From: ham_amplifiers@... [mailto:ham_amplifiers@...] On Behalf Of Tony King - W4ZT Sent: Sunday, January 14, 2007 7:58 PM To: ham_amplifiers@... Subject: [ham_amplifiers] Real Yahoo amp on Ebay... This person is really off his/her rocker! <> 73, Tony W4ZT Yahoo! Groups Links |
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lol...
That guy started out cloning the Pride DX300... Then started adding tubes to them. He has quite a keydown vehicle, as well... Lots of alternators, but he actually claims that the "flex" the alternators have on them when he "fires down" (ie, the drag causing them to flex in their mounts) helps him. Controlled damage? --Toll_Free On Sun, 14 Jan 2007 17:58:12 -0800, Tony King - W4ZT <w4zt2007@...> wrote: This person is really off his/her rocker! -- *Ratings are for transistors, tubes have guidelines* |
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craxd
The guys making these are ex-Maco employees down in Memphis, TN.
Melvin and Sneaky Pete is who I know them by. They bought out what was left of the Maco amp parts back when Dick Orgal and myself quit building amps when the tubes ran out around 89 or 90. Their problem is they don't build with the quality components we used, nor really know how to design them. Their major problems were under-sized power supplies, very noisy blowers, and shoddy workmanship. One can see in this one that the layout is terrible. The power supply is a mess. The cabinets look like the ones built by another friend on mine (Mark Davis) down in Olive Branch, Mississippi just across the state line from Memphis. If so, this is one of their older amps since Mark quit a few years back when his wife bacame ill (unless Marks boy built them). Mark (now around 75-80 years old or so) used to build my cabinets and wind my transformers. Plus, he did build some decent amps himself. He also worked with Maco for a short while when I was associated with them back in the early 80's. I can't tell what tubes are in this one, but they were mostly built with 4CX250B's. These look to be a larger tube. 10 kW though, ehhhh I highly doubt that. Best, Will --- In ham_amplifiers@..., "Robert B. Bonner" <rbonner@...> wrote: 70's he had a treddle peddle on his wattmeter under the bench. As he"PEAKED" the radios while whistling them up, he'd push the peddle further.[mailto:ham_amplifiers@...] On Behalf Of Tony King - W4ZT |
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Tony King - W4ZT
It's a pair of 3CX1500's (8877)... no where close to the power he claims. Nor close to the voltage he claims. That particular amp isn't going to be able to do anywhere close to the claimed power even IF the power supply could handle it... which it can't.
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Quote from the ad: "this is a tenn-walker amp/linear. it was just rebuilt has two steel tubes and brand new transformer, this transformer will handle more tubes, if you decide to make this piece bigger, it runs on 220 with a 60 amp braker on low side she puts out 10,000 watts of power, and will cruise all day and great key-down time. now on the high side look out cb'ers you are gone. this unit will easy put out a whopping 15,000 watts, will do more but the builder told me I can't run as hard on the key down time. I run this piece on a 6 element beam, maco 6. you will have to have 25,000 watt gama's. I run 217 coax with this piece. this is a high power unit. it is built to talk on ch-6. I like to have fun with the other big boys. I used to by the name needle bender the 747 on the air. I use a bird peek meter with this, with a 25,00 watt-slug, made by coaxial dynamics 2-30 MHZ 25 KW, because bird only makes a 10 KW and this slam's that slug on the low side. I will hook it up and show you how it works. this is a heavy piece and should be picked up, but I will ship it at the buyer's expense. I guarantee this to be a good working piece, BUT I have to sell it as-is due to the nature of this. Any other questions feel free to e-mail me or call my cell phone at 231-225-1957 and I will try to answer all questions. this piece is DALE-MADE here in the Lansing, Michigan area. GOOD-LUCK BIDDING>I will consider selling driver with it, also 100 feet of coax and more. NOTE: This is a two (2) piece unit." 73, Tony W4ZT craxd wrote: The guys making these are ex-Maco employees down in Memphis, TN. Melvin and Sneaky Pete is who I know them by. They bought out what was left of the Maco amp parts back when Dick Orgal and myself quit building amps when the tubes ran out around 89 or 90. Their problem is they don't build with the quality components we used, nor really know how to design them. Their major problems were under-sized power supplies, very noisy blowers, and shoddy workmanship. One can see in this one that the layout is terrible. The power supply is a mess. The cabinets look like the ones built by another friend on mine (Mark Davis) down in Olive Branch, Mississippi just across the state line from Memphis. If so, this is one of their older amps since Mark quit a few years back when his wife bacame ill (unless Marks boy built them). Mark (now around 75-80 years old or so) used to build my cabinets and wind my transformers. Plus, he did build some decent amps himself. He also worked with Maco for a short while when I was associated with them back in the early 80's. I can't tell what tubes are in this one, but they were mostly built with 4CX250B's. These look to be a larger tube. 10 kW though, ehhhh I highly doubt that. |
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Tony King - W4ZT
Questions he/she answered:
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"Questions from other members Question & Answer Answered On Q: What is the tube # in amp? jsbtsb38 Jan-09-07 A: Hello, 2 amp continious 36,000 volts turned down to 34,000 volts, 6 amp diodes power supply, oil field capasader, 3CX 1500 same as 8877 military issue...more Q: hello, what wre the tubes? thank the zipperrs Jan-09-07 A: Hello, they are 3CX 1500-tge same as a 8877 military issue but better and they are at 100%." 73, Tony W4ZT craxd wrote: The guys making these are ex-Maco employees down in Memphis, TN. Melvin and Sneaky Pete is who I know them by. They bought out what was left of the Maco amp parts back when Dick Orgal and myself quit building amps when the tubes ran out around 89 or 90. Their problem is they don't build with the quality components we used, nor really know how to design them. Their major problems were under-sized power supplies, very noisy blowers, and shoddy workmanship. One can see in this one that the layout is terrible. The power supply is a mess. The cabinets look like the ones built by another friend on mine (Mark Davis) down in Olive Branch, Mississippi just across the state line from Memphis. If so, this is one of their older amps since Mark quit a few years back when his wife bacame ill (unless Marks boy built them). Mark (now around 75-80 years old or so) used to build my cabinets and wind my transformers. Plus, he did build some decent amps himself. He also worked with Maco for a short while when I was associated with them back in the early 80's. I can't tell what tubes are in this one, but they were mostly built with 4CX250B's. These look to be a larger tube. 10 kW though, ehhhh I highly doubt that. |
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Tony King - W4ZT
Also, click on the bid history, currently 15 bids, and you'll see the classic example of shill bidding... strictly against Ebay's rules.
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73, Tony W4ZT Tony King - W4ZT wrote: Questions he/she answered: |
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When Calvin started pumpin money into the place, they went to 3CX3000s and 3CX350s for drivers.
Tenessee Walker is the "brand name", but you're pretty much correct, on the 'Experts' on the playing field. We might have met somewhere, sometime :) --Toll_Free On Sun, 14 Jan 2007 19:01:46 -0800, craxd <craxd@...> wrote: The guys making these are ex-Maco employees down in Memphis, TN. -- *Ratings are for transistors, tubes have guidelines* |
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craxd
--- In ham_amplifiers@..., 1800 Toll Free
<TollFree1800@...> wrote: 3CX3000s and 3CX350s for drivers. I'd say that Mr. Powers was pumping more parts into the place then greenbacks. Calvin worked for Maco on and off for years. Dick fired him once over stealing, but hired him back. I bought a bag of 500 slug type tuning coils (the ones in the Maco amps used for the input- SWR tuning) for $50 off my friend in Missippi. I was going to buy them from Maco since they ordered extra for me. My friend said he had 500 that were "similar" so I bought them for 1/10 the price. After I got them in, they were the same coils. I made a quick call and found he got them from Calvin. Hmmm, where do you think they come from? They was hot as a firecracker I was told. When Dick moved the amp manufacturing part out of the main building down the street, after the big bust, that was when the big rip off occured. They opened the shop one morning and was cleaned out in a lot of parts. I wouldn't doubt that a lot of the steel and large glass tubes came from Maco that were used in these amps. Melvin and Pete bought the parts from Dick for around $20,000 I heard. Dick had the balls to ask me $150,000 for the same parts at the time, and I said Hell NO! correct, on the 'Experts' on the playing field.quit problembuilding amps when the tubes ran out around 89 or 90. Their reallyis they don't build with the quality components we used, nor powerknow how to design them. Their major problems were under-sized insupplies, very noisy blowers, and shoddy workmanship. One can see Thethis one that the layout is terrible. The power supply is a mess. linecabinets look like the ones built by another friend on mine (Mark quitfrom Memphis. If so, this is one of their older amps since Mark wasa few years back when his wife bacame ill (unless Marks boy built tubesassociated with them back in the early 80's. I can't tell what are in this one, but they were mostly built with 4CX250B's. These |
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I heard the same story, pretty much. And I can also say I've been privy to some back door sales from that neck of the woods, as well.
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Do you know Dennis O? I believe he and the boys down south went back a little as well... Last time we where all down there (when we took the videos on bigradios.com) they all seemed to know him at the "new" shop. Fun, going down memory lane. Also nice to not be bashed to hell and back over being both on 11 and the ham bands. As far as I'm concerned, QRO is QRO... lol. Although I'd LOVE to go to John Lyles work for just a week / week and a half. --Toll_Free On Sun, 14 Jan 2007 20:06:43 -0800, craxd <craxd@...> wrote:
--- In ham_amplifiers@..., 1800 Toll Free --
*Ratings are for transistors, tubes have guidelines* |
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Phil Clements
--- In ham_amplifiers@..., Tony King - W4ZT
<w4zt2007@...> wrote: 34,000 volts, 6 amp diodes power supply, oil field capasader, 3CX 1500 same as 8877Wow! I would really like to get ahold of one of them "oil field capasaders!" Maybe that is the key to the tremendous power of this wonderful amplifier. (((73))) Phil, K5PC |
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Harold Mandel
开云体育The literary implication points to the author and company being suspects. ? Someone I know recognized the amplifier, and knows where it came from, and it was not built in Michigan, does not produce 34KV, does not produce 25KW, and uses a PWD oil-filled cap rated at 5KW that was purchased along with the PWD xfmr. ? The true manufacturer of the amplifier was famous for real big CB amplifiers through the years including some tetrode amps like 4CX15,000A’s and 3CX20,000D’s that really made RF power with 3-phase inputs, etc. ? Or should I say “susp-x?” ? Hal From:
ham_amplifiers@... [mailto:ham_amplifiers@...] On Behalf Of Phil Clements ? --- In ham_amplifiers@
.> wrote: > > Questions he/she answered: > "Questions from other members > > Question & Answer Answered On > Q: What is the tube # in amp? jsbtsb38 > Jan-09-07 > A: Hello, 2 amp continious 36,000 volts turned down to 34,000 volts, 6 > amp diodes power supply, oil field capasader, 3CX 1500 same as 8877 > military issue...more Wow! I would really like to get ahold of one of them "oil field capasaders!" Maybe that is the key to the tremendous power of this wonderful amplifier. (((73))) Phil, K5PC
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pentalab
--- In ham_amplifiers@..., Tony King - W4ZT <w4zt2007@...>
wrote: ## This is a joke right ?? BTW... RG-217 is puny stuff.... it's the 50 ohm version of the older RG-14 52 ohm 5/8" plane jane coax.... slightly bigger than RG-213. Both RG-217 and RG-14au are 5/8" od. 217 has a 10 ga solid center conductor.. and is still being sold. ## IF he is talking about RG-17..... they have not made that stuff since the 70's. [it was 52 ohm] RG17 was used with LC connector's... and the solid center conductor IS the center pin ! ### RG-17 is now called RG-218. RG218 is the newer 50 ohm version... and has a slightly bigger cenetr conductor.... which will not fit the older LC femal chassis connector's... unless grns down a bit. Both RG17 and RG-218 ate huge 1" diam.... and have the same loss's as LMR-600 or 1/2" heliax. Later.... Jim VE7RF |
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RICHARD GEORGE
开云体育Speaking of coax, look at the piece that runs from the loading cap to the
relay. This stuff may be good for 300 watts or so not 10kw.
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It looks like a BG box from Chicago.
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--Toll_Free On Mon, 15 Jan 2007 12:28:05 -0800, Harold Mandel <ka1xo@...> wrote:
The literary implication points to the author and company --
*Ratings are for transistors, tubes have guidelines* |
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pentalab
--- In ham_amplifiers@..., "RICHARD GEORGE" <k6kwq@...>
wrote: to the relay. This stuff may be good for 300 watts or so not 10kw. ### agreed... UNLESS it's RG-393... which is a tiny bit smaller OD than RG-213 .390" vs .405" ## The kicker is.... the braid is NOT bonded to chassis at the load cap end.... so he's gonna end up with a gross Z bump. That alone puts the load cap at a HIGH Z point... with it's peak V across the load cap sky high. ## The other common mistake on these 11m amps is using some simple strap / wire from load cap to t/r relay... same deal... gross Z bump.. plus the tiny bit of uh in the wire... now makes the PI-net into a PI-L net. That again puts the load cap at a high Z point.. with lotsa peak V across it. ### Don't laff... I was told by several of these 11m builders.. that a 5 kv vac load cap will arc across... and that a 10 kv rated vac load cap is needed... which is pure nonsense of course. ### Turns out what most of em do is tune the amp up full bore with a dead cxr........ THEN switch to AM !! Of course the PEP output of the xcvr is 4-5 times the unmodulated cxr output. ### The 10 kw unmodulated output amp... when switched to AM.. is now trying to put out 40-50 kw pep... gags.. and flat tops. On an AVERAGE reading wattmeter.. meter will deflect backwards. These guys tell me at that point... they back the drive down a bit.. till meter starts deflecting upwards a tiny bit! ### Then they wonder why they arc 5 kv rated vac load caps ! ### A YC-243 / 3x 6 is good for 12-14 kw pep output. You pulse tune it for 12-14 kw pep output.... THEN... when u switch to AM.... tweak drive so u have 3 kw of cxr. Then with a PEP reading wattmeter.... while modulating... pep output will be 12-14 kw pep........ and unmodulated it's 3 kw cxr. ### The above scenario is assuming you are trying to run an amp as a class AB-2 GG LINEAR. The amp has to be LINEAR. Run it class B/C... and it's gonna sound like crap. ## same deal with a SB-220. Tune it for 1200-1400w pep. Unmodulated cxr should be 300 w . ### That giant P+b mech relay in that 11m amp isn't gonna run vox anytime soon either. ### probably what the fellow meant to say was 3.6 or 3.8 kv... not 36-38 kv. He could barely string 3 words together... never mind spell. Later.... Jim VE7RF |
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Mike Sawyer
A fellow from another BB asked the seller about it. He said that there is no
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way that "thing" is going to pump out 36KW. She told him he was not qualified to make that statement and that question and his bid would be rejected! Mod-U-Lator, Mike(y) W3SLK ----- Original Message -----
From: "pentalab" <jim.thomson@...> To: <ham_amplifiers@...> Sent: Monday, January 15, 2007 6:22 PM Subject: [ham_amplifiers] Re: Real Yahoo amp on Ebay... --- In ham_amplifiers@..., "RICHARD GEORGE" <k6kwq@...> wrote: to the relay. This stuff may be good for 300 watts or so not 10kw. ### agreed... UNLESS it's RG-393... which is a tiny bit smaller OD than RG-213 .390" vs .405" ## The kicker is.... the braid is NOT bonded to chassis at the load cap end.... so he's gonna end up with a gross Z bump. That alone puts the load cap at a HIGH Z point... with it's peak V across the load cap sky high. ## The other common mistake on these 11m amps is using some simple strap / wire from load cap to t/r relay... same deal... gross Z bump.. plus the tiny bit of uh in the wire... now makes the PI-net into a PI-L net. That again puts the load cap at a high Z point.. with lotsa peak V across it. ### Don't laff... I was told by several of these 11m builders.. that a 5 kv vac load cap will arc across... and that a 10 kv rated vac load cap is needed... which is pure nonsense of course. ### Turns out what most of em do is tune the amp up full bore with a dead cxr........ THEN switch to AM !! Of course the PEP output of the xcvr is 4-5 times the unmodulated cxr output. ### The 10 kw unmodulated output amp... when switched to AM.. is now trying to put out 40-50 kw pep... gags.. and flat tops. On an AVERAGE reading wattmeter.. meter will deflect backwards. These guys tell me at that point... they back the drive down a bit.. till meter starts deflecting upwards a tiny bit! ### Then they wonder why they arc 5 kv rated vac load caps ! ### A YC-243 / 3x 6 is good for 12-14 kw pep output. You pulse tune it for 12-14 kw pep output.... THEN... when u switch to AM.... tweak drive so u have 3 kw of cxr. Then with a PEP reading wattmeter.... while modulating... pep output will be 12-14 kw pep........ and unmodulated it's 3 kw cxr. ### The above scenario is assuming you are trying to run an amp as a class AB-2 GG LINEAR. The amp has to be LINEAR. Run it class B/C... and it's gonna sound like crap. ## same deal with a SB-220. Tune it for 1200-1400w pep. Unmodulated cxr should be 300 w . ### That giant P+b mech relay in that 11m amp isn't gonna run vox anytime soon either. ### probably what the fellow meant to say was 3.6 or 3.8 kv... not 36-38 kv. He could barely string 3 words together... never mind spell. Later.... Jim VE7RF |
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craxd
--- In ham_amplifiers@..., "Mike Sawyer" <w3slk@...>
wrote: there is no way that "thing" is going to pump out 36KW. She told him he was notwould be rejected! It don't look like any "real" human being has bid on this yet. If they did, they're a fool. Most CBr's I know have better sense than that. I personally wouldn't give no more that $150 to $200 for it just for parts. I guess she or he thinks that nobody knows where those Tennessee Walkers are made at either. It sure isn't in Michigan like they claim. What makes me wonder is why the one selling it wasn't killed by electrocution as dumb as they sound to be. Mod-U-Lator,Best, Will |
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