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Sounds great, Rob! I didn’t change anything with mine other than the scale. Mine said “200uA FS” at the bottom of the scale. I didn’t try calibrating it, as it appears to be showing the

Have progress to share here. Received the meter I bought from eBay. Perfect fit as it was an 83T as the original. The last one available. It was a 0-300 DC Amp. meter. Came with an external resistor

After further review (of the ckt diag and ToO section of the manual, my first guess is voltage regulation of the VCO or VCXO.Basically eveything works, just some slight drift. I'll change over from

Thanks Tom. I chose to log in with google. 73' Sjaak PA3GHL. TRANSLATE with x English Arabic ( #ar ) Hebrew ( #he ) Polish ( #pl ) Bulgarian ( #bg ) Hindi ( #hi ) Portuguese ( #pt ) Catalan ( #ca )

It is starting to sound like this unit suffered from some sort of high voltage event on the control lines. For slow drift I would suspect a problem with one of the voltage regulators or maybe the

Thanks Steve. I have to repair the T4B first. I miss a few tubes and have to clean it and then testing. 73’ Sjaak PA3GHL

Yeah, that is really strange. Maybe it wasn't really a cap? 73 -Jim NU0C "John K5MO" <johnk5mo@...> wrote:

Good progress! I'm not used to hearing ceramic caps fail. I wonder if they're subject to metal migration over time as other caps can be. To shunt enough current to create smoke, it formed a pretty

Sjaak, To reset your Groups.io password: 1. Go to /login 2. Enter your email address. 3. Click the link below the password field. Forgot your password 73, Tom AG9X wrote:

Summary: solid progress but more work to do Details: ? Replaced all electrolytics with new ? Replaced burned resistor R218 150 ohm in ENABLE line ? Replaced damaged axial lead ceramic capacitor

How can I make a new one, or what can I do the best? PA3GHL, Sjaak. TRANSLATE with x English Arabic ( #ar ) Hebrew ( #he ) Polish ( #pl ) Bulgarian ( #bg ) Hindi ( #hi ) Portuguese ( #pt ) Catalan (

Use all the cables except for PTO LAMP and CAR OSC. put a shorting plug in the R-4C PTO LAMP jack. Do the transceive alignment per the T-4B/T-4XB but use the trimmer that is used for the carrier

Hello members, Ik have a Drake T4B and I like to use it with a Drake R4C, how can I connect these at best? 73’ Sjaak, PA3GHL.

Thank you, Stan!

Please email a copy of the cards and QC tag date and Ron, WB4HFN can add those to his serial number database on his site. Email:??wb4hfn@... Drake Equipment (wb4hfn.com) (

Hello all, On the net Sunday afternoon I checked in with my work in progress TR-3. Someone commented on my audio being a bit off but I did not get the call. Who was that? Can someone point me to just

HA! I DID. tHANKS FOR THE CORRECTION. Sorry. David Assaf III W5XU, VP8RXU [email protected]> wrote:

I think David made a typo. Go here https://farcircuits.net/tr-7__hw-7__and_hw-8_mod.htm The board you are looking for is this one. According to the price list, the board is $6 plus shipping. QST Jul82

I am unable to find anything related to “Drake Aux-7” on fairradio.com . joseph n. graif k4jng Sent: Saturday, February 3, 2024 11:55 AM To: [email protected] Subject: Re: [DRAKE-RADIO]

Seems to me these springs are found in knobs to fit shafts with flats. Some knobs also have a flat, the spring fits into that and against the flat on the shaft when the knob is installed. I can't