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There are a lot of function generators on ebay for under $ 100 that start at almost zero Hz and go to 5 to 25 MHz depending on the price.? They are not shielded so that may be a problem. One just has

Steve/Chris; See attached schematics. May help if you don't already have these. The transition was at serial #453. I think mine is #456 or something like that - just after the change was made. 73

Hi Steve, thanks for the info.? Do you happen to know what the original maker/PN might be?? I don't have an original to reference.?? This one is SN 861.?? Regards,?Chris kc9ieq On Thu, May 11,

The biggest part of the problem with my setup using the HP-8640B/HP-11710B was my brain. I was going on memory as to what the proper input frequency to the down-converter should be and that was

Steve: I agree with you....but a lot of us OT's are using HP 8640B's as our "go-to" signal gennie and it's great at 455 Khz, but won't do 50 Khz. Wonder what you are using Steve? My solution turned

I have found the simplest way is to just use a signal generator and zero beat. Both of my 2-Bs needed minor adjustment, which is not unexpected after 60+ years. 73, Steve Wedge, W1ES/4 Time flies like

Chris, the output transformer is a generic part that was very common in the days when this receiver was made. The 6AQ5 was very commonly used as an audio output amp and Drake used a fairly standard

Hi all,? I just picked up a bucket list 1A which seems to fundamentally work, however the output transformer appears to be a much later replacement AND has failed.? Tall order but has anybody an

Barry, By golley, you are right, the TS-440s only goes down to 100KHz! I could have sworn it could go lower. Well, you can hear maybe the 2nd but for sure the 3rd harmonic of the BFO. If you haven't

I have a TS-440S/AT that I haven't powered up in a long time. I need to get it out and play with it. From what I see on the web, those only go down to 150kHz(?). I also have a Grundig Satellit 800 and

Remember it’s radio. If you have another receiver you can just listen for the signals with an antenna wire draping over the oscillator sections. I use my TS-440s that goes down to 30KHz (IIRC). But

I was thinking of checking the oscillator with my counter by using a coil around the oscillator tube. I have a working plugin for my Tektronix 7000-series scopes and that could probably work but

?Actually, you can set the 405 KHz and 50 KHz oscillators with a scope with a frequency counter feature. A 10X probe doesn't seem to load it down enough to disallow this method. I tend to do it both

I haven't heard back from you on my interest Marty KL7AM

I’ve noticed lots of birdies but haven’t haven’t logged frequencies. Considering the simplicity of the receiver, I’m not shocked. 73, Steve Wedge, W1ES/4 Time flies like an arrow. Fruit flies

Are there known birdies on the 2-B? I have them on mine (one really significant one) and wondered if that was expected. I doubt it's normal but thought I'd ask. Thanks, Barry - N4BUQ

Fellow Drake Enthusiasts, To answer a question that was posed, ?yes, there would be a discount for a combined purchase of both items. ?$800 would take them both. For those that attend, I hope

Great idea! Let us know how it works out. 73, Gary WB6OGD

I am not going to Dayton To: "DRAKE-RADIO" <[email protected]> Sent: Tuesday, May 9, 2023 4:40:22 PM Subject: Re: [DRAKE-RADIO] FS - TR-7 parts radios Are you going to Dayton?

I had one of those about 12 years ago. I should've kept it. Thanks, Barry - N4BUQ