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DRAKE TR-7 HF Transceiver : AUX-7 (model 1536) https://www.universal-radio.com/catalog/hamhf/AUX7.html Solutions / Alternatives for Drake AUX-7 Board == Nationwide Radio Sales Mark Olsen, KE9PQ

Carol contacted me last night. The problem was on my end. -- Bill N0CU

It is under the desk and so won’t be hit by me. My cats don’t have the strength to turn it :-) Steve Wedge, W1ES/4 Time flies like an arrow. Fruit flies like a banana. Sent from Proton Mail for

Same here, Steve. A Stacor Variac is used along with a 4-recepticle isolation transformer. An RCA WV-120B line voltage monitor plugs into one of the receptacles to monitor line voltage while adjusting

Steve, Since that variable transformer can be adjusted to output more than 125V you might consider removing the knob to prevent accidental voltage changes. *Ken* *WA2LBI* [email protected]>

I measured my line voltage here in central NC and it’s usually 123VAC or thereabouts. I decided that, rather than going through a dozen or so rigs, it was and is much easier to buy a 20A Variac and

Dave, I just took a quick look at mine and reminded myself how it works. The mode selector switch is inside the bandwidth selector switch (dual function). Most of the knobs are similar, though the

Some of the earliest discussions were by the US Navy that was studying why tubes did not last long. Filament voltage was generally the culprit and gave rise to the +_ 10 % voltage range. The major

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The manuals and service data are still available for digital download? from? Gary's widow at http://k4oah.com/Drake_new11/index.html. I don't think the CDs are still available but you can of course

The extension of lamp and tube life applies to pure tungsten filaments.? These were common in large transmitting tubes.? For receiving tubes the general reccomendation is to keep filament voltage to

I am picky about things, but the twins are not going to be rigs I will use a great deal and probably seldom. No doubt the Sherwood updates are top-notch but it just wouldn't be worth it to spend the

I sent a test email to k4oah@... and received a prompt reply from Carol Barrell. Then I sent a $1.00 payment via Paypal to k4oah@... and the payment went through. I got this

Could be re Warc and contests refuge do work for some OK. Seems to me I do not hear the stations looking for relief there from my QTH in Toronto. Maybe if I was more central into the USA. As it is my

That is true but if you do a lot of band hopping you wear out the Up/Down buttons (and your finger). And yes, there is activity on the WARC bands. Especially on major contest weekends when the

I would give it a whirl as well. Bill N1WL ?? ????????? CallSend SMSAdd to SkypeYou'll need Skype CreditFree via Skype

Not to discourage fabricating boards, but from what I can observe it seems like it would be faster and cheaper to just convert the TR-7/TR-7A to all band transmit using one of the two or three ways of

The problem at this time is that there is no account open at PayPal for K4OAH. So until one does get opened, PayPal has no way to make the payment and their policy is to cancel the payment request

I bought them from Carol (his XYL) back in 12/2021. IIRC, it did take a few days to get a response. Scott, KK7CAI

I will give it a try. - Steve? W7SJT "Always look for a positive solution then Improvise, Adapt, and Overcome" - Adaptation of the U.S. Marine Corps motto "There are no rules here!...We're trying to