开云体育

I just found a baggie of 1N5408's. They seem way over-rated - am I missing something, or are they fine to use? I also have a bunch of 1N4004's but they seem under-rated. WDYT? Thanks, David KD4E

And you can elect to have a digest, which basically sends you one or two emails per day. Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent with [Proton

I wouldn't trust any caps with paper or cardboard envelopes. The last ones were probably made in the 1960s. Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent with [Proton

David, Ha ha.. I am 4 years older. Us old guys like to get the radios we couldn't afford back in the day. I sold my TR-4C (flipper) to a guy in the bay area.? He went to UC Berkeley, the TR-4C was

Makes sense. I was 8 in '63 when they made the TR-3 then was graduating college when the TR-4C came out. Thanks, David KD4E

Diodes were new fangled expensive things back in AC-3 days.? Now they are much better and very cheap. I think I used all 1n4007s in mine (1KV, 1Amp).? Drake had to use two types to keep the cost

I've been hunting and sifting through all the schematics I can find online - I think this parts list matches what I have. There appear to be two different types of diodes - four that look like

Rich, Log into the groups.io group. Over on the left find the "Subscription" link.? Click and the first section lets you change to anything down to NO emails, so you just go to groups.io and read

David, I am not positive but I think there were two (or more) versions of the AC-3.? I think mine was the really early one, with choke input filter for better regulation at the drawback of extra

Is this PS list correct? Note: The lettering only refers only to installation in a MS-3 or RV-3, there's no mention of a MS-4 or RV-4 (it lacks the early AC-3 choke). PARTS LIST (2) 150ufd @ 400v (2)

It's not that I'm no longer interested in this Drake news and discussion but I now get way, way too many emails from this group. How do I get myself off of the mailing list?? Thank you all. Rich W3RJ

I got some of those yellow paper covered electrolytic at the "drake going out of business sale". I should see if they're leaky or not. John [email protected]> wrote:

Yep and the interesting thing is that the earlier TR-4 can cap doesn't fail like the newer one. Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent with [Proton

Man, you guys should see my R&S SMPD. 50 lbs of 500 kHz to 2.7 GHz German-spec signal generator! Yeah it takes up 1/3 of my bench. That's the downside... Steve Wedge, W1ES Time flies like an arrow.?

I've been considering the plate (actuallly, cathode) current readings on the TR-4 vs with a T-4X(any). Interestingly, the later transmitters shed their 0 - 400 mA meters, in favour of 0 - 500 mA

Really? Wow. That's awesome. I can do that. Thanks!

Talk about tunnel-vision! He said TR-4 and it never even occurred to me to even look closely at the faceplate. We were standing in a non climate-controlled space while talking, and it was cold. 'And

Harbach was bought out due to Jeff's health issues. ?They are still in business.

*** Alas I cannot. Limited bench/storage space and bad back. Back in my salad days, I put in a few years fixing and maintaining big old heavy test equipment, so there's a bit of nostalgia about

Those are 1964 date coded caps. They've earned a retirement! John K5MO [email protected]> wrote: