Offering the following difficult to locate components for the amplifier builder. Can be viewed at the Yahoo site listed below. Click on Amp Builders Components: a. HF high voltage plate chokes wound
Offering the following items for sale (including spares) as a component package removed from a full wave bridge chassis driving a pair of 8877's 7-3B28's 4- RCA 866's 2- Amperex "Slim Jim" 866AX's (R
Offering a matched pair of high quality National Radio machined bevel gear right angle drives complete with 1/4" output shafts, anti-backlash shaft collars, and all set screw hdwe. One of the two sha
Anyone interested in DX memorabilia, I'm offering in mint condition the 9th Edition (Circa 1970's) 20 page Radio Amateur Callbook World Atlas. Contains World Polar projections and call signs areas, f
Offering a legal limit 10-80m tank circuit completely wired and ready to drop in. Switch and antenna tune caps are high quality porcelain. Includes a HV plate choke wound on a tapped porcelain rod. E
Can anyone help with a 200 ohm 100W power resistor. Could also use a 100ohm to match the one I have. . Thanks, Ron W2CQM/3 _______________________________________________ Amps mailing list Amps@conte
Offering a matched pair of high quality die cast turns counters with high speed spinner knobs. Each counter records revolutions on a Veeder counter. Bevel gears are machined to prevent backlash. One
Offering a potted Thordarson dual winding high voltage transformer testing amplifier tube high voltage breakdown parameters. 115VAC primaries for convenient Variac power up control. Porcelain standof
SELL: Powerstat 0-135VAC @ 7.5amp small footprint variable (Variac type ) transformer. Measures 4x5" with 3/8" shaft. Includes knob. Offers a variety of input and output fixed and variable voltages.
Offering essential and difficult to locate components for a homebrew 10-80m 1500W amplfier project. Package includes a complete, intact, fully wired silver plated tank/bandswitch assembly. Bandswitch
I have a SK550 (918) zener diode that I believe to be rated at 12VDC @ 50W. There appears to be ( barely visible) an arrow pointing away from the metal threaded housing towards the cathode end. When
Thanks for all your help with the orientation of the zener and the related tests to determine the true cathode direction. The zener was indeed mis-labeled which caused me all kinds of turmoil. One ad
To all who responded to my query about determining zener polarity, many thanks. The problem was resolved and now my understanding of that critical component is well beyond just installing a zener in
Building up a RF deck around a hamfest purchased Svetlana 3CX2500F3 tube. Would like to determine which one of the factory bonded HD filament cables is internally attached to the cathode. One cable e
Many thanks to the knowledgeable guys out there who graciously contributed information in response to my query about the Svetlana 3CX2500F3 in a typical grounded grid linear amateur radio amplifier a
Offering: A. Bird 4410 multiranging wattmeter rated at 0-10000w. Reads power output with one element in seven front panel switch selectable ranges: 0-10, 0-30,0-100,0-300,0-1000,0-3000,and 0-10,000W.
Offering the following components for the KW+ power supply builder: a. Potted HV power supply smoothing choke. Military rating (on plate) 8 Hy @ 500ma (double that in ham applications). 10KV breakdow
SELL: A. Three (3) 175 ohm 100W non inductive resistors. Paralleled and immersed in 5 gallons of mineral/transformer oil for the ultimate 2KW+ dummy load. Complete with spring loaded mounting bracket
SELL: A. Porcelain roller inductor 10-40m. For RF deck or antenna tuner. Will handle 1KW $25 B. 6m porcelain roller inductor. $12 C. 100K @ 200 Watts bleeder resistor. $20 D. Interlock switch with br