Re: Drake W4 wattmeter part three
Mike
I placed 2 each 1N295's in the mail to you this AM. I think these are the spare 2 I bought for my W4 when I was having problems.? Enjoy
73? Bob
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Re: Drake W4 wattmeter part three
I'm fortunate in that this set seems to be unmolested AND has BOTH 500 Hz CW filters. Not bad for $80 at NEARfest a couple of years ago!
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with Proton Mail secure email.
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On Monday, January 22nd, 2024 at 7:20 PM, jerry-KF6VB <jerry@...> wrote: On 2024-01-22 14:36, Steve Wedge, W1ES/4 via groups.io wrote:
Yeah, we all have "those projects". I'm finally tearing into a
TS-830S
*** I loved my TS-830S. Best radio I'd ever had. My only problem
with it
was the crappy circuit boards. They were not very tolerant of rework.
- Jerry, KF6VB
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I need to get some of my volume cut down to a more reasonable level.
I have one C Line cabinet.? This fits either the T-4XC or R-4C, as Drake moved all side jacks and controls off of the sides -- enabling them to use just one set of cabinet bottoms.? No dents, some adhesives evident in various places and it looks like it had a minor respray.? No feet.? $30
R-4B cabinet.? Bottom has some denting around where the feet were and there are some marks/scrapes, here and there.? Not bad and I've seen much worse. Silkscreen on the side is good.? No feet.? $30
Prices are plus shipping and I use Pirate Ship for either USPS or UPS (your choice)? Either of these are very restorable.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
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Re: Drake W4 wattmeter woes...
Hi Mike
Search for 1N295 here:
https://www.nteinc.com/search.php
Found NTE109.
Datasheet NTE109:
https://www.nteinc.com/specs/100to199/pdf/nte109.pdf
How to find NTE distributors:
https://www.nteinc.com/2-ways-to-purchase.php
You can a few maximum ratings on 1N295 here:
https://english.electronica-pt.com/components-cross-reference?ref=1n295
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best regards,
Glenn, OZ1HFT
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Re: Drake W4 wattmeter woes... 1N295...
Hi Mike
Goto:
Search for 1N295 - NTE109 can replace 1N295.
NTE109 datasheet:
https://www.nteinc.com/specs/100to199/pdf/nte109.pdf
How to purchase:
--
best regards,
Glenn, OZ1HFT
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Re: Drake W4 wattmeter part three
On 2024-01-22 14:36, Steve Wedge, W1ES/4 via groups.io wrote: Yeah, we all have "those projects". I'm finally tearing into a
TS-830S *** I *loved* my TS-830S. Best radio I'd ever had. My only problem with it was the crappy circuit boards. They were not very tolerant of rework. - Jerry, KF6VB
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Re: Drake W4 wattmeter part three
Yeah, we all have "those projects".? I'm finally tearing into a TS-830S that I thought had RF switching issues.? It turned out that the meter switch wasn't making contact.? I took it apart and cleaned it and it's now working but has some other messed up things going on.
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
On Monday, January 22nd, 2024 at 5:22 PM, mike bryce <prosolar@...> wrote:
Yeah, over the years, I¡¯ve collected quite a few. I¡¯ve never really did anything with them other than line them up on a shelf and look at them. With the weather so crappy, I decided to take them down and test them.?
I have a couple of WH7 watt meters and one was really out of calibration. It calibrated without issue.?
Heathkit loved to build ¡®oscopes¡.. Drake loved to build wattmeters!
mike wb8vge On Jan 22, 2024, at 5:18 PM, Steve Wedge, W1ES/4 via < w1es@...> wrote:
Mike, I'm curious.? How did you get so many bad ones?? Hamfest find?
73,
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Re: Drake W4 wattmeter part three
Yeah, over the years, I¡¯ve collected quite a few. I¡¯ve never really did anything with them other than line them up on a shelf and look at them. With the weather so crappy, I decided to take them down and test them.?
I have a couple of WH7 watt meters and one was really out of calibration. It calibrated without issue.?
Heathkit loved to build ¡®oscopes¡.. Drake loved to build wattmeters!
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On Jan 22, 2024, at 5:18 PM, Steve Wedge, W1ES/4 via < w1es@...> wrote:
Mike, I'm curious.? How did you get so many bad ones?? Hamfest find?
73,
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Re: Drake W4 wattmeter part three
Mike, I'm curious.? How did you get so many bad ones?? Hamfest find?
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
On Monday, January 22nd, 2024 at 4:53 PM, mike bryce <prosolar@...> wrote:
here is one I¡¯m working on, and I¡¯m fairly confident it¡¯s not a Drake factory meter.
Mike, wb8vge? On Jan 21, 2024, at 2:11 PM, Jim Shorney < jimNU0C@...> wrote:
Yeah, there were some surplus Motorola repeater rack meters floating around eBay for a while that were almost the correct Jewell version but were more sensitive. I bought one, added an external shunt, and rescued a WV4. It's possible that someone got ahold of one of those and didn't understand the concept.
73
-Jim
NU0C
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Good work getting it going Joe.
The 2NT/2C really is a sweet combination
John K5MO
On Mon, Jan 22, 2024 at 2:58?PM Joe KI5O < ki5ojoe@...> wrote: I was running into more problems this afternoon on the 2NT. Relay was not releasing. Checked the voltage to ensure the cutoff was happening. Slightly lifting on the arm stretched it back into the correct position and QSK and delay changes are better than ever. Looking like the relay was deformed a bit by previous owner pressi down on it trying to get it working.
I wonder if the previous owner sold it because of this problem? Anyhow I just wanted to document in case somebody else comes across this at another time. The two problems with inoperative 2NT delay were bad 15M potentiometer (thanks Bob!) and the relay arm needing slight adjustment.
Joe ki5o?
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Re: Drake W4 wattmeter part three
here is one I¡¯m working on, and I¡¯m fairly confident it¡¯s not a Drake factory meter.
Mike, wb8vge?
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On Jan 21, 2024, at 2:11 PM, Jim Shorney < jimNU0C@...> wrote:
Yeah, there were some surplus Motorola repeater rack meters floating around eBay for a while that were almost the correct Jewell version but were more sensitive. I bought one, added an external shunt, and rescued a WV4. It's possible that someone got ahold of one of those and didn't understand the concept.
73
-Jim
NU0C
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I was running into more problems this afternoon on the 2NT. Relay was not releasing. Checked the voltage to ensure the cutoff was happening. Slightly lifting on the arm stretched it back into the correct position and QSK and delay changes are better than ever. Looking like the relay was deformed a bit by previous owner pressi down on it trying to get it working.
I wonder if the previous owner sold it because of this problem? Anyhow I just wanted to document in case somebody else comes across this at another time. The two problems with inoperative 2NT delay were bad 15M potentiometer (thanks Bob!) and the relay arm needing slight adjustment.
Joe ki5o?
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Re: 2NT side tone quality
Easy fix, the ballasts on my garage florescent fixtures were creating hash. Turned off the lights and great tone.?
Joe ki5o?
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Re: DRAKE TECHNICAL NET 7.238 UPDATE
It looks like my T-4X still needs work (or its cable does). We had company, so I bowed out.?
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
On Mon, Jan 22, 2024 at 09:50, Mark - WB0IQK < mgilger@...> wrote: Today Evan, K9SQG was the NCS for today's net.? He had 37 check-ins. The net always starts at 4PM Eastern on 7.238 +/- QRM.
The band was in really good condition. The following radios were used?:
?
A-LINE - 2
B-LINE - 2
C-LINE - 7
TR4(X) - 10
TR5 - 4
TR7(x) - 6
OTHERS - 6
?
73'S,
Mark, WB0IQK
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DRAKE TECHNICAL NET 7.238 UPDATE
Today Evan, K9SQG was the NCS for today's net.? He had 37 check-ins. The net always starts at 4PM Eastern on 7.238 +/- QRM. The band was in really good condition. The following radios were used?:
?
A-LINE - 2
B-LINE - 2
C-LINE - 7
TR4(X) - 10
TR5 - 4
TR7(x) - 6
OTHERS - 6
?
73'S,
Mark, WB0IQK
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Good day,?
Moving further ahead towards completion of getting this novice station back in line. No that the delay potentiometer is sorted, I'm now focused on the side tone.
Setup is 2NT, 2C, 2BQ, HA-5 VFO as well as crystals.
Everything is operating well and I have made some contacts again today. When using the side tone, the note sounds good but there is also a strong buzzing sound. Previously before the 2C was acquired, I was just listening directly without side tone on the 2B.?
Both the 2NT and 2C have been recapped. Please let me know if you have any thoughts!
Joe ki5o?
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Bob thank you for the help on this. The potentiometer arrived today and the delay adjustment is working perfectly.
Joe ki5o?
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Re: Drake W4 wattmeter part three
Yeah, there were some surplus Motorola repeater rack meters floating around eBay for a while that were almost the correct Jewell version but were more sensitive. I bought one, added an external shunt, and rescued a WV4. It's possible that someone got ahold of one of those and didn't understand the concept. 73 -Jim NU0C On Sun, 21 Jan 2024 09:28:41 -0800 "jerry-KF6VB" <jerry@...> wrote: On 2024-01-21 09:21, mike bryce wrote:
I¡¯m wondering if at one time someone swapped out the meter for
something much more sensitive instead of the stated 200uA one Drake
used. *** I can easily imagine somebody scoring a nice meter and just sticking
it in.
Once upon a time...
...As a preteen in San Francisco, I attended an after school electronics
program known as "Lux Labs". We had lectures, and we built projects.
One
of our first projects was a crystal radio. The program provided us with
all
the parts, including a cheap headset.
Down on Radio Row, I scored a really nice Western Electric headset.
For some reason, my crystal radio never worked. The instructor
checked all my
wiring, pulled on my solder joints - all OK. But not a peep out of it.
Some twenty years later, I woke up one morning, sat up in bed, and
said "600 ohms!"
...which was surely the input impedance of that nice WE headset. Way
too low for
a crystal radio.
- Jerry, KF6VB
-- 73 -Jim NU0C
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Re: Drake W4 wattmeter part three
On 2024-01-21 09:21, mike bryce wrote: I¡¯m wondering if at one time someone swapped out the meter for
something much more sensitive instead of the stated 200uA one Drake
used. *** I can easily imagine somebody scoring a nice meter and just sticking it in. Once upon a time... ...As a preteen in San Francisco, I attended an after school electronics program known as "Lux Labs". We had lectures, and we built projects. One of our first projects was a crystal radio. The program provided us with all the parts, including a cheap headset. Down on Radio Row, I scored a really nice Western Electric headset. For some reason, my crystal radio never worked. The instructor checked all my wiring, pulled on my solder joints - all OK. But not a peep out of it. Some twenty years later, I woke up one morning, sat up in bed, and said "600 ohms!" ...which was surely the input impedance of that nice WE headset. Way too low for a crystal radio. - Jerry, KF6VB
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Re: W4 has 1N34A available for it.
I was going to buy some Fluke test meter leads from Amazon. After reading the reviews, it was apparent the leads Amazon was selling were fake Chinese junk.
mike wb8vge
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On Jan 21, 2024, at 12:19 PM, Lyndon VE7TFX <lyndon@...> wrote:
Frank Barnes writes:
Amazon will sell us all the 1N34A's we want and the prices are inexpensive,
about 60 cents each with free delivery for Prime members. And the odds are close to 100% that none of those are actual 1N34s.
Amazon semiconductors are almost guaranteed to be fakes. Don't Do
It.
--lyndon
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Jim Shorney