Recent content by sp5it

I wonder if Lou Franklin copied channel guard from there or they did from Lou :) Mike

I have a few of them. Insane receiver. Imagine, that it is a design from 80's with proper input stage, mixer, NB and channel guard filter from a factory :) Not to mention excellent modulation from built in compressor/limiter. Mike

If you want real improvement from swapping input transistor and mixer, that is the way. Mike

Changing silicon diodes to Schottky or germanium benefit in AM and NB detector. Because of lower Vf both detectors are triggered faster than silicon diodes. Replacing input or mixer transistor won't help as long as you set correct Q-point. Mike

Sirio 2016

400$ for chickenbander LMAO

Arctic is crap. Tested once, went to the bin. Fun fact: I was replacing power transistor in machine which was more than 20 years old. White thermal paste used back then was still in a good shape. Mike

Thread should start with amplifier name. So you need additional keying circuit. See attached pdf https://www.ebay.com/itm/205483629891?mkcid=1&mkrid=711-53200-19255-0&siteid=0&campid=5336136228&customid=&toolid=10001&mkevt=1 On my side of the pond I get them from nearby electronics store.

On 10 pin plug it is pin 2 and 3 as well. No difference. 99.9% amplifiers go to TX that way. 0.1% need additional keying interface. Like SB-200 or TL-922 Sorry if I expressed myself not clear enough.

Pin 2 and 3 on tuner socket. It is in the manual. Haven't you read? Mike

Read this: https://www.w4wb.com/Reflections_III.pdf

Sirio 2016

No way I can win this :D

https://cbworldinformer.org/rci_2950dx_image_rejection_md.htm RCi always had crap receiver circuit.

Like this