Does anyone have a Tube LAYOUT for a HQ-100???

I have started building a 7-MHz AM trasmitter with four suppressor-modulated 803s in push-pull-parallel. I expect to get nearly 400W of carrier power. My only concern is plate voltage. As a matter of fact I plan to use a power supply that delivers about 2800V under no-load conditions, which is...

Hello All, I'm looking for an AM/CW rig in the 100 watt class, and may have a choice between a Heath DX-100 and a Heath Apache. In looking at the specs I could find on the two, the Apache looks like the better choice. What do you think? Cheers, Brian Ex: W5BRO, K6UCD

I am cleaning an assortment of transmitters and receivers. Most have wax residue in ventilation holes. I have tried using several cleaners and soaps with a soft tooth brush and hot water. I can't find my old style stiff pipe cleaners, only the new soft designer color ones. I am going to try and...

So I Have what I think is a Heathkit 6 Meter lunchbox also known as a HW-29 / 29A but I cant seem to find any that look like the one I have Here is a front and back shot. thanks Chris

Guys, I'm looking for a cross needle SWR meter useable on the HF amateur bands. I'm working on installing an HF mobile in my car. If you have one for sale or know of one available please let me know. Thanks for any help you can provide.

On Saturday, March 9, 2013 6:17:42 PM UTC-5, kirk fitzner wrote: Hi all, i am looking for info on the collins 30L-1 power supply upgrade kit.

That sounds horrible! The wonderful thing about those amps is that there are enormous safety margins on everything and they are just solidly over-engineered. Why would anyone want to wreck that for the sake of less than one S-unit? --scott Scott, the Collins 30L-1 has safety margins on...

I'm attempting to determine the approximate age of a device I have by it's wiring since there are no other identifiable marks. While it's not actually a rig (it's an old electric powered film security camera), I feel this is the appropriate place to post given the expertise of the Ham community....

Hi everyone, I am looking for a VR-300 ,( 95 - 130 volts, 60Hz Voltage Stibilizer ) by Acme electric or GE. used In BOONTON Q Meter 190A. Please, If available, let me know the value. Thank you in advance!

Answering Robb's question made me think of a very mild puzzler: Can you think of a way to connect up an octal tube socket so that no matter what orientation a pair of crystals is put into it you'll still have two switchable crystals (no forcing pins allowed -- only schemes where the crystal...

The Southern California Antique Radio Society will hold it's Annual Vintage Radio Auction at the First Presbyterian Church of Orange, 146 North Grand St., in Orange, CA.,on Feb. 16th at 10am. The event will feature classic radios, vintage test equipment, tubes, books, etc. For complete auction...

On Monday, January 27, 1997 12:00:00 AM UTC-8, Keith Sykora wrote: I'm looking for a source for a 1N3996A Zener Diode to repair the power supply in my SB-220. If you could help please send an E-mail to Thanks in advance for you consideration and time. 73 Keith ...

I smoked the "Line Adjust" rheostat in my TV-7D tube tester recently and so far have not found a replacement. I've got it by-passed now and am using a variac to set the voltage level. If anyone has a tv-7 junker, I sure could use one. It is 200 ohms in value and 1 1/2 inches in...

Looking for the schematic for my fathers Drake SW2 shortwave receiver that needs repairs. The schematic is not in the operators manual and Drake states that they no longer support the radio. Some copies of the schematic were sold by Drake which stopped sometime in 2012 because they were bought...

Which of the s-38 series is the best? Lookng for something for Stright Key Night to use with Ameco AC 1 Garry WW9GT

Hi all, I'm repairing an old Geloso G.222 TR transmitter for a friend (this is the first version, I understand there were two issues from the schematics I've found on the net). First of all, this set has been modified with two relays for transmit/receive antenna changeover and HV switching. I...

The following was posted on the Boatanchors Reflector by William Watson Quote Because of illness, I need to sell the following collection of boatanchors: Motorola R-390A, with tag, looks nice, with top and bottom covers, works well. Racal RA-17L Looks very nice, with...

Many years ago, late 50's early 60's, there was an electronic surplus store on Market St. in San Francisco. I believe it was Standard Surplus. Can anyone confirm the name and address? Thanks, Gene

Hello all, I have just acquired a extremely good condition S-38D that someone removed the original dial pointers and replaced them with ones made from an aluminum Coke can! The dial cords are original so I have no earthly idea what they were thinking! I you have a junker set and would like to...