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Hi Mike. No factory training here sorry. Just fixing them as needed and time permits. Typical failures are tantalum caps shorting so sorting thru that issue can get some level of progress. Are they

Well, regardless of whether or not the inserts are lead, there are basically two hunks of relatively soft metal that fit into what appears to be a nylon tube.? Although that could be a way of

Hi everyone! I said I’d never work on one of these things again. EVER! But here we are…. The one has the 2M and the 440 bands. I had repaired the two meter part, but the 440 module looks like it

Bob, I re-read your OP. Your rig should have the moulded couplings and I can’t think of how those could fail under normal conditions. However, Drake used screwless knobs for these two controls. Make

The early couplers were round and had a straight spring piece in them. Later ones are moulded. I’m guessing you have the older type, missing the spring piece or with a piece that is no longer arced.

Hello dear Drake specialist. At this time i was not able to found the service manual or or pdf version for TR7A! I Have an original version for TR7 ( 1979) and i read somewere that a version dec 1980

HP test equipment has had problems with hardened lubricant on switch shafts. The 8640B's bandswitch operates a cam that rotates in on two bushings. When that lubricant hardens on those bushings, it's

K6OXN Bob writes: Well ain't that interesting. A while back I picked up a Yaesu FTV-250 transverter with a frozen solid bandswitch. I popped the lid, and it was immediately obvious the unit had been

I have seen several reports that stored RV-75's have reported Function Switches that are frozen. In my purchase of a NIB RV-75 and having the Function Switch seized, I decided to look into it after

The insert is not lead but... Have you lost the spring piece inside?? They shouldn't have play.? Every one I have seen is actually really tight, hard to get loose to remove the cage. They probably

*Today we had 46 check-ins to the net held on 7.238. The following equipment was used to check-in. * *TR3-1* *TR4(x) - 8* *TR5 - 1* *TR7 - 10* *TWINS - 13* *Next week BIll W9MXQ will be the net

What suggestions does the group have on the best way to resolve slop and play apparently caused by wear and tear on the lead inserts in the shaft couplers on the Plate & Load controls? This happens to

Jim.. I am sorry…We cannot allow your C line to sell here…it is too nice! J Bet it will be hard to part with it when it sells. I’d get it in a heartbeat, but already have a full C line with all

According to the QST article, 24 pins. Two 10-pin and one 4-pin were called out, but other combinations have been used. Another note on the QST article, you don't actually need the 100K resistors if

Complete, working C-line for sale. I am the only owner. No mods. R4C includes all filters and 4NB noise blanker. Includes Drake cables and original boxes with packing materials and manuals. $1500 cash

OK. I was unable to find what I was charging for the cable years ago.? It was most likely 10 cents an inch.? I sold it by the inch as I was getting all kinds of odd lengths.? I will sell off what I

Actually, I would need enough to populate 2 boards. I'm not sure how many the boards take. 73, Clint, VE3CMQ

I’d be interested in 2 of them. Thanks and 73, Clint, VE3CMQ Sent: Sunday, 4 February 2024 11:16 To: [email protected] Subject: Re: [DRAKE-RADIO] Searching for AUX-7 boards… I have a bag of

I still have a partial roll of the Belden 8421 left.? The original length of the injection cable was 38" TIP to TIP.? I haven't sold any in a long time and forgot what I was charging for it plus the

Confirms it many times. :D Here is the original source. /g/DRAKE-RADIO/message/28549 73 -Jim NU0C "VE7PS" <ve7ps@...> wrote: -- 73 -Jim NU0C