开云体育

There's also this: https://youtu.be/V-F_Fz2G7BI?si=cELxWrWCd9TPiqEv "Ed via groups.io" <wa6wgs@...> wrote: -- 73 -Jim NU0C

Make that "R13A is selected". I was looking at the schematic for my version (schematic 26000) and that resistor was still labeled simply R13, which was already taken by the "real" R13 at V3. Thanks,

Take a peek! https://www.eejournal.com/article/h-is-for-heathkits-and-hams-part-1-early-days-through-the-1950s/ https://heathkit-museum.com

I have found that virtually all of the resistors in my TR-4 have not aged out of tolerance which is a little surprising. I did, though, replace the three 15R cathode resistors. I think one or two were

The one I have is still going strong as well. I've had it for probably 40 years and have never had to do anything to it. [email protected]> wrote:

Sorry but I have no idea. I'll see if I can locate mine and if it has publisher information. Some of the booksellers at Hamfests used to sell them as I remember.

Thanks! 73 ________________________________ Sent: Sunday, May 18, 2025 9:25 PM To: [email protected] <[email protected]> Subject: Re: [DRAKE-RADIO] DRADE USERS NET UPDATE - 18 May 2025 It's on

It's on Sunday at 3:00 PM CST. 7238 Khz +- depending on QRM. 73 Stan KM4HQE

7238 +/- QRM, 4 PM Sunday, EST. ?Welcome!

Can someone please share the information on the Drake user's net? thanks Ralph AD9FM ________________________________ Sent: Sunday, May 18, 2025 6:44 PM To: [email protected]

Barry,Something else to consider - Every TR-n that I've worked on has had the plate current meter resistors aged high.? The result is that plate current measurement is not correct which of course

Speaking of Heathkit... I was fairly addicted to building Heathkit gear after the first kit when I was 10.? I think I spent about all the money I earned fixing people's TVs and radios as a teenager

Out mains typically runs 126VAC and that puts the HV well over 700VDC (I don't recall the exact value at the moment). 6JB6s are rated at 770VDC plate voltage max so I think that's probably okay. I

YES NO Rain, unbelievable weather for Hamvention! But it was also such a great thing to see you there Evan. Was so glad you were able to make it out there Evan. Rex WB8TDG wrote:

I found a couple of references that agree that the standard US line voltage went to 120 in 1967. The US started at 110/220 in the late 1800s because Edison’s light bulbs were designed for 110 — AC

Conditions were not good. I couldn't hear Ron, WB4HFN. He's about 70 miles east of me. Evan is usually really strong here but he was only S5. Not sure how well I was making it into Dayton with the B

There is a common misconception that our Drake rigs were designed for 115VAC or even 110VAC. They were designed for 120VAC nominal -- which, through all my years of testing and helping to design raw

I tested all three tubes for gas and none were bad in that respect. Interestingly, I decided to perform the "LIFE TEST" where the filament voltage is reduced (I think it goes down to about 5.8V or

The library network is free…my Mass. lib consortium is 38 public/municipal/memorial libraries…. STAY SAFE AND STAY WELL! Respectfully, Thomas K. Lanieri, NU2W NJ DOH Licensed EMT; PHTLS, AMLS,

Joe, there are 6 of them listed on Bookfinder at the moment. It looks like you will have to pay a C-note to get a copy though. Dave