Paulo, Connect Q11 collector to the junction of R45 and R48. Connect the open end of R51 to TX line. In 602 the OUT-B is pin 5 Audio is for phones only. Raj

Farmer here also Vic, I grow coffee. Monsoons have started and everything is very wet for the next few months. The probe at 911/2 is acting like an antenna and the whole circuit is oscillating. This s

Ashok, What might suit you is the uSDX - I have one from VU2POP and it is approximately 4"x4.5"x4.5" in size and 2W out on 2 bands of your choice. BARC club project. Raj, vu2zap

To me it means the power amp from Q911 is working as it is oscillating and output producing power. Concentrate on Q90 area. best way is use a sig gen to drive the amp and check. Raj

Thanks for the tempting offer. There is no more space under our bed!

#forsale

Vic, Your power supply is also low,please check voltage. You should get more voltage on the collector.

Continuity between C80 input and L1 ? Resolder L1/2/3/4 Assuming static killed some parts check D1/2 - if a diode has failed you will get lower Rx sensitivity. Raj

Vic, Remember to check R83, no need to desolder it but check in situ with a multimeter. Raj

If R80 is blown and it still does not transmit then C80 needs to be replaced. Raj

Vic, R80 is blown. Replace it! Raj

Sharing some thoughts, 1/2 5532 U4b has a 10MHz unity gain BW, so you can even have 60 db gain and that will have 10KHz response. Save some stages after! Raj

Q11 collector not connected Farhan. Raj

We have only two choices Jack- OM and YL! Good to hear you are OK, hear from Farhan that many guys got it there. Raj

Looks like carrier leak from 11.059 (11.0555 BFO) oscillator mixer. Change BFO frequency and see what happens. Raj

#ubitx

Resolder D1/2/3/4/5 and see first. Many boards have soldering problem which I guess is due to the tin plating on component leads. The symptoms are drop in sensitivity and also TX power out. (you shoul

#v6

Auranzeb, The Si generator is is quick way out, but the art and mastering a VFO has a charm and challenge of its own. My Gurus/Elmers mad such stable VFOs! Use an aircoil wound an a ceramic. Teflon ro

Instead of polyvaricon try with an old radio air variable. Raj

I would say greater than 10W. I still have a 100 pack or original 1969!! Cheaply made for CB radios yet under utilized by amateurs. Build it and let us know. Raj

See attached pdf, is this the one ? From this page: https://www.vintage-radio.net/forum/showthread.php?t=168092 Raj, vu2zap

Sometime Google gives you such answers. Try this! https://www.analog.com/en/design-center/interactive-design-tools/rf-impedance-matching-calculator.html