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For those who don’t know, here are the locations of the 11 meter crystals. Here are some photos to help. Like everyone says they are very difficult to pace and remove to stock 10 meters. What a flash back to the past! Enjoy, best regards Robalo. 73’s

These devices are useful for controlling the AC line voltage, e.g, bringing up AC slowly when servicing vintage Vacuum tube Guitar and HI-FI Vacuum tube preamplifier/power amplifiers and tube type radios. Also useful for adjusting filament voltage for preamp and power output tubes. ****now can...

I have to put my antenna down because I have variable swr from 1.2 to 2.5 or more so far this is what I found up. Any idea how to fix it please tx.

I just got a TL-922A and before booting it up I would like to know if any of you happen to see anything wrong with it. I’ll attach some photos below. 73’s

Sunday morning I opened the door and found this surprise. I hope it works

I just got this radio with tx problem on tr21on collector I do not have voltage on rx on B and E I have 7.8v .mmm. when i tx the mike on collector tr14 and tr 15 read about 35 volts. PC-900AC board

Do you guys think it’s a good summer project? Or any thoughts on if this a good DX antenna? Or just taking up space?

Finally I have time to work, My little amp is a Sonar br-2906. It's tuned to an AM channel 20, I got 40 watts DK on AM. Then I did the jump mod for SSB. It does 56 DK WINT 150pep. It sounds really good on air, great modulation, but it has some RFI noise. Can someone help me find the problem I...

Radio on tx AM 50(100 pep) watts, FM 100 watts, LSB 100 watts, now USB look, it tx 210 watts and blow the 20 amps fuses. what i need to do, thank. :confused::confused::confused:. how do I power balance?

set every element for 6" of overlap and adjust the TOP section for resonance (ground plane elements are 4" per instructions). Maco suggests adjusting "T43P" (second section). I'd much rather have a solid 6" of overlap here. You will find that the top section will have close to 12" overlap. Since...

1st time playing with fire .I hope you can help me on this experience. The amp has 3 new bulb A811a and wend i turn on. I have 1.8 plate voltage on STBY. Thank you in advance.Also I need to know is the ARb-702 box run with 9-12 volts .o if I used de grey cable only with pin 2 ground,pin 4 red ...

I stopped by today on a garage sale and I found some ham radio treasure from ft-920, al811, low pass filters, Alonzo dr140t, microphones, whole different bands/antennas, balun kits, amp tubes, antenna rotors, antenna books cubical quad arrr antenna books from 1974, and more. tomorrow I will...

I just received and tested this heater and I would like to know if this is average wattages. They seem to work okay, the Palomar needs a fix though. Thanks for the comments.

Can you help if this resistor o with the schematic thank you in advance

I am working on galaxy 949 dx right now and i can hear the tone on AM only not on SSB It thas right?

I am trying to put it together. I need pdf file please 73’s @Robalo

i need to know wend yaesu release new model right now I looking in to FT-891 little nice radio.

Where is the modulation VR .

I need new multimeter, what do you guys think of the new unit "UNI-T UT89XD Digital Multimeter" or what do you guys recommend for me, preferably under $100?

Have you try this before what a pain in the &@77