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I had one of the cases repaired by a person who uses plastic welding and it turned out bad. He wasn't sure what the material was. Looking inside the case I can see some type of dark glue that attached the original segments. Searching the manuals gave no indication, but maybe I missed it. Would be nice if there is a solvent type glue. Thanks in advance.

Carl Hallberg (W9CJH)

From: Chuck Harris <cfharris@...>
Sent: Jul 26, 2018 11:59 PM
To: [email protected]
Subject: Re: Wow Radio Shack desoldering Iron Best review ever, Re: [TekScopes] 466-464 stray wire

I have minimal experience with industrial soldering machines. I
was a kid back in 1970, and a ham, and getting a job working for
DEI was like being let loose in a candy shop. I did a ton of
odd jobs after the child labor bureau made me stop doing all of
their silver and gold plating. I was a sponge, and soaked up every
process or technique I was exposed to. Which was a lot. I did
etching, plating, drilling, KPR, soldering, helped set up the
one-off machines that made standoffs and rivets... moved safes,
carried trash, pushed a broom... but I digress.

Nobody that I am aware of was using reflow ovens back in 1970.
Everything I saw was either through-hole, or was simple stuff
that was hand soldered on one of the teflon based pcb materials.

But I can only talk to what DEI, Nems-Clarke, and Vitro were did,
and also what a PCB manufacture/build/assemble house I worked at
later was doing.

I just did a search, and the only 80/20 alloy I could find was a
Pb80/Sn20, which has a solidus temperature of 183C and a liquidus
temperature of 280C. That is as compared to 63/37 which is 183C.

Pb80/Sn20 would be wonderful for operations where you needed to
sculpt the solder, like a car fender, or the terminals on very high
voltage circuitry. It would also be useful for soldering terminals
that might be later soldered with 63/37, such as the internal connections
on a modular mixer.

-Chuck Harris

From: Ray Burke <burke.ray@...>
Sent: Jul 27, 2018 10:10 AM
To: "[email protected]" <[email protected]>
Subject: Re: Wow Radio Shack desoldering Iron Best review ever, Re: [TekScopes] 466-464 stray wire

The Radio Shack Desoldering bulb is useless?because you cant get the tips any more, no more Radio Shack.? I have used the?Radio Shack Desoldering bulb, (have one).? Solder Wick, Solder Suckers?and other tools, while they are cheap, they do cause damage to the circuit boards with pulled pads, through holes, and other problems, ( I have used them and damaged my boards).? Don't use any of the cheap alternatives, if you want to save the circuit boards.? Use at least a good?Desoldering gun or station.? Use at least a Hakko FR-301 which I just bought, or a better Hakko Desoldering station, there are others that are more expensive like Pace, Metcal, which I used at work.? I?just?used it to repair my wife's monitor?that died?with no power, and opened it up and found?about three bulging capacitors, replaced all eight on the power supply, and fixed it.? After getting the caps at Fry's it only took? me about 20 minutes to change all eight, love my new Desoldering gun, NO PULLED PADS.? One other thing is manufacture support, Hakko is the best.? I got a desoldering station from my work, which they didn't want any more and Hakko had?the tips for the thing.? Now you could?get some cheap Chinese knockoff but support may not be their in a few years, or at all.? ??Buy at least a Hakko?and you?won't be disappointed.?The other main desoldering companies are more expensive.? You could check out the tear apart videos of the ?www.EEVBlog with Dave Jones.???

On Thursday, July 26, 2018 11:36 PM, Michael A. Terrell <mike.terrell@...> wrote:


I started working in a TV shop at 13, in 1965. One older tech was a fountain of practical knowledge. I wasn't old enough to open an account at the local parts house, so he would buy things for me so Ii didn't have to go through our boss and pay his markup. He bought me my first desoldering iron which was a professional version of that Radio Shack version. It was made by Endevco, and it was almost $40 which was a lot for a kid making a buck an hour after school. He was also the one who got me started on Ersin Multicore solder. I've never regretted paying a little extra for good solder, because there was very little waste.

We handed the resale of a wave solder machine for Lockheed Martin around 1990, along with other process equipment after they shut down a production line in one of the Orlando plants.

Microdyne was still using the same grade of paste solder they tarted with, even though the SMD parts were a lot smaller than the first they used. I had to fight with Manufacturing engineering to buy a type with smaller solder balls and a RMA flux. The fine pitch ICs (IE: MC68340) came out of the early ovens with unmelted solder balls under the ICs, and the 0402 passives were tombstoning. They had spent a wad on that Heller oven, but the quality hadn't changed. Once we had better solder, we could refine the reflow profiles. That eliminated over 95% of the reflow problems within a few months, as they continued to refine the profiles.

Did you build much equipment for your Amateur radio hobby? I went a different route, into broadcasting. Not many hams ever got to pump out 5MW EIRP of RF from a 1700 foot tower. :)

Michael A. Terrell

From: Chuck Harris <cfharris@...>
Sent: Jul 26, 2018 11:59 PM
To: [email protected]
Subject: Re: Wow Radio Shack desoldering Iron Best review ever, Re: [TekScopes] 466-464 stray wire

I have minimal experience with industrial soldering machines. I
was a kid back in 1970, and a ham, and getting a job working for
DEI was like being let loose in a candy shop. I did a ton of
odd jobs after the child labor bureau made me stop doing all of
their silver and gold plating. I was a sponge, and soaked up every
process or technique I was exposed to. Which was a lot. I did
etching, plating, drilling, KPR, soldering, helped set up the
one-off machines that made standoffs and rivets... moved safes,
carried trash, pushed a broom... but I digress.

Nobody that I am aware of was using reflow ovens back in 1970.
Everything I saw was either through-hole, or was simple stuff
that was hand soldered on one of the teflon based pcb materials.

But I can only talk to what DEI, Nems-Clarke, and Vitro were did,
and also what a PCB manufacture/build/assemble house I worked at
later was doing.

I just did a search, and the only 80/20 alloy I could find was a
Pb80/Sn20, which has a solidus temperature of 183C and a liquidus
temperature of 280C. That is as compared to 63/37 which is 183C.

Pb80/Sn20 would be wonderful for operations where you needed to
sculpt the solder, like a car fender, or the terminals on very high
voltage circuitry. It would also be useful for soldering terminals
that might be later soldered with 63/37, such as the internal connections
on a modular mixer.

-Chuck Harris

From: Chuck Harris <cfharris@...>
Sent: Jul 26, 2018 11:59 PM
To: [email protected]
Subject: Re: Wow Radio Shack desoldering Iron Best review ever, Re: [TekScopes] 466-464 stray wire

I have minimal experience with industrial soldering machines.? I
was a kid back in 1970, and a ham, and getting a job working for
DEI was like being let loose in a candy shop.? I did a ton of
odd jobs after the child labor bureau made me stop doing all of
their silver and gold plating.? I was a sponge, and soaked up every
process or technique I was exposed to.? Which was a lot.? I did
etching, plating, drilling, KPR, soldering, helped set up the
one-off machines that made standoffs and rivets... moved safes,
carried trash, pushed a broom... but I digress.

Nobody that I am aware of was using reflow ovens back in 1970.
Everything I saw was either through-hole, or was simple stuff
that was hand soldered on one of the teflon based pcb materials.

But I can only talk to what DEI, Nems-Clarke, and Vitro were did,
and also what a PCB manufacture/build/assemble house I worked at
later was doing.

I just did a search, and the only 80/20 alloy I could find was a
Pb80/Sn20, which has a solidus temperature of 183C and a liquidus
temperature of 280C.? That is as compared to 63/37 which is 183C.

Pb80/Sn20 would be wonderful for operations where you needed to
sculpt the solder, like a car fender, or the terminals on very high
voltage circuitry.? It would also be useful for soldering terminals
that might be later soldered with 63/37, such as the internal connections
on a modular mixer.

-Chuck Harris

Hi Tom,

I've used them before. I used JLCPCB for these boards. I'm pretty sure there are several options for inexpensive boards like these.

Thanks,
Barry - N4BUQ

----- Original Message -----

From: "Tom Gardner" <tggzzz@...>
To: [email protected]
Sent: Friday, July 27, 2018 8:15:29 AM
Subject: Re: [TekScopes] Replacing Electrolytics in a 465/465B

On 27/07/18 13:33, n4buq wrote:

I may do that. If someone wants just one, then it's somewhat cheaper to
get it from someone (me?) who orders a batch. I'm probably going to order
one more batch with the updates I mentioned and then turn it loose.

I need to make a PDF of process as well. There are some considerations
that I really didn't mention (e.g. some jumpers need to be put in place or
extra ground wires run to the board, etc.) and a better document will help
there.

Alternative: use

You can make the design available for anyone else to order:

That saves you hassle and you are given some credit against your next order.
Of
course you can't make a profit either :)

You can fit a single "figure of eight" pcb containing two circular "capacitor
converters" in a 50x50mm board, provided you rotate the "8" by 45 degrees.

Cost $12 for 10 boards, i.e. 20 capacitors. That's a lifetime supply for most
people!

From: "Tom Gardner" <tggzzz@...>
To: [email protected]
Sent: Friday, July 27, 2018 8:15:29 AM
Subject: Re: [TekScopes] Replacing Electrolytics in a 465/465B

On 27/07/18 13:33, n4buq wrote:

I may do that. If someone wants just one, then it's somewhat cheaper to
get it from someone (me?) who orders a batch. I'm probably going to order
one more batch with the updates I mentioned and then turn it loose.

I need to make a PDF of process as well. There are some considerations
that I really didn't mention (e.g. some jumpers need to be put in place or
extra ground wires run to the board, etc.) and a better document will help
there.

Alternative: use

You can make the design available for anyone else to order:

That saves you hassle and you are given some credit against your next order.
Of
course you can't make a profit either :)

You can fit a single "figure of eight" pcb containing two circular "capacitor
converters" in a 50x50mm board, provided you rotate the "8" by 45 degrees.

Cost $12 for 10 boards, i.e. 20 capacitors. That's a lifetime supply for most
people!

From: "Tom Gardner" <tggzzz@...>
To: [email protected]
Sent: Friday, July 27, 2018 8:15:29 AM
Subject: Re: [TekScopes] Replacing Electrolytics in a 465/465B

On 27/07/18 13:33, n4buq wrote:

I may do that. If someone wants just one, then it's somewhat cheaper to
get it from someone (me?) who orders a batch. I'm probably going to order
one more batch with the updates I mentioned and then turn it loose.

I need to make a PDF of process as well. There are some considerations
that I really didn't mention (e.g. some jumpers need to be put in place or
extra ground wires run to the board, etc.) and a better document will help
there.

Alternative: use

You can make the design available for anyone else to order:

That saves you hassle and you are given some credit against your next order.
Of
course you can't make a profit either :)

You can fit a single "figure of eight" pcb containing two circular "capacitor
converters" in a 50x50mm board, provided you rotate the "8" by 45 degrees.

Cost $12 for 10 boards, i.e. 20 capacitors. That's a lifetime supply for most
people!

From: "Brian Cockburn" <brian.cockburn.1959@...>
To: [email protected]
Sent: Friday, July 27, 2018 6:59:49 AM
Subject: Re: [TekScopes] Replacing Electrolytics in a 465/465B

Barry,

Although I'm not interested in these PCBs per se, could I make a
suggestion? Perhaps for international Tek fans you could put the design
(schematic, layout, & gerbers) on github, dropbox, or something similar?
That way people can use any of the many PCB fab companies (in China) to
get it done for themselves. This makes it easier for you, but obviously
you may lose control of the design going forward.

Cheers, Brian.

From: Chuck Harris <cfharris@...>
Sent: Jul 26, 2018 11:59 PM
To: [email protected]
Subject: Re: Wow Radio Shack desoldering Iron Best review ever, Re: [TekScopes] 466-464 stray wire

I have minimal experience with industrial soldering machines. I
was a kid back in 1970, and a ham, and getting a job working for
DEI was like being let loose in a candy shop. I did a ton of
odd jobs after the child labor bureau made me stop doing all of
their silver and gold plating. I was a sponge, and soaked up every
process or technique I was exposed to. Which was a lot. I did
etching, plating, drilling, KPR, soldering, helped set up the
one-off machines that made standoffs and rivets... moved safes,
carried trash, pushed a broom... but I digress.

Nobody that I am aware of was using reflow ovens back in 1970.
Everything I saw was either through-hole, or was simple stuff
that was hand soldered on one of the teflon based pcb materials.

But I can only talk to what DEI, Nems-Clarke, and Vitro were did,
and also what a PCB manufacture/build/assemble house I worked at
later was doing.

I just did a search, and the only 80/20 alloy I could find was a
Pb80/Sn20, which has a solidus temperature of 183C and a liquidus
temperature of 280C. That is as compared to 63/37 which is 183C.

Pb80/Sn20 would be wonderful for operations where you needed to
sculpt the solder, like a car fender, or the terminals on very high
voltage circuitry. It would also be useful for soldering terminals
that might be later soldered with 63/37, such as the internal connections
on a modular mixer.

-Chuck Harris

-----Original Message-----
From: Colin Herbert via Groups.Io
Sent: Thursday, July 26, 2018 8:15 AM

Hi,
I know there have been enquiries as to whether the back-plane connections of
these two series are compatible, but that is not the question that I am
asking. I am wondering if the mechanical latching mechanism, with all of its
parts, is the same between these series. The manuals are not very clear.
Does anyone have any information on this? I am interested because I am
considering buying a parts-donor 5A22N to provide latch components for my FG
504.
TIA, Colin.

I had some from a company around Orlando that was 80/20. I thought that was odd, but it was in the original containers. We also got tons of what the wave solder machines in the area skimmed as waste. We sold it to a company that made cheap solder to re-refine. Another source was from a company that made marine wiring harnesses. 30 years ago, there were a lot of companies in Orlando using tons of solder.

Did you do any work with reflow ovens?

I never used a wave solder machine, but we had three reflow ovens at Microdyne. Two older 'pizza oven' models, and a new Heller with computer controlled, multiple zone operation that stored the profile for every board that we built.


Michael A. Terrell