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Great thanks please let me know

So I have been doing some searching and reading. See picture posted on the 4 slot programmable oscillator. From what I read on the board it will be good for Am but not SSB or FM as you will not be able to vari/open the voicelock/clarifier to slide. Says it will not, but maybe can be used on ssb...

this is from kens Yaesu FT101ZD, FT107, FT707, FT901DM & FT902DM (HC-25/u): (*=$15): Ham Radio band-mixer crystals: ([0]# call Bomar for crystals that are not in our inventory) [0]#40.4875(26.0-26.5), [0]#40.9875(26.5-27.0), [0]#41.4875(27.0-27.5), [0]#41.9875(27.5-28.0)...

I dont know if its a trippler circuit crystal friend never told me.

I tried Kens and Barketts tried many places and no one has them.

I have a friend Im trying to help out. He need these xtals I think for a Yaseu radio 40.9875mhz 41.4875mhz Looked every where and nothing Is there anything else that could be used in place of the xtals?

So maybe a dual Expo signal injection 1 for transmit and 1 for receive just saying if possible would have to work so the transmit is injected when transmitting and the receive injected when just receiving controlled by a switch/relay. I'm looking at this as a split tx/rx system. I guess 1 way to...

Has anyone have an Idea if there might be a way to add extra channels to the new am/fm 29s ???

thanks for the info i will readup on the mods. thanks

So it looks like no extra channel mods for the newer 29's

Does it look like they are using a crystal oscillator programmable for the mixer frequency. I dont see that area on this new board

I was wondering if anyone here has fooled around with the programmable oscillators. I see a youtube video where someone used one for a cobra 29 for extra channels. Was wondering since crystals are very hard to find and cost too much if one could be programmed for say 11.4758mhz to be used to get...

What the F are you talking about??? talk English bud

Power supply update. Part RCA29 came in installed and all works great. I also added the variable mod to the supply. All astron supplies 7-10-20-35-50 amp with or without meters has the provisions on board to make the power supply variable 0-15 volts. thanks to all who replied. Here is a link on...

Well I replaced the 723 and the 2n7331 and same results voltage but volts drop to almost 0 when keying a radio. I have the RCA29 on its way and will see what happens. I will have to wait until the part comes to do some voltage checks its a pain to get to and remove the cover.

Ill have to wait hopefully this week the RCA29 will show and replace it and see what happens under load. I'll report back with the results.

I checked all the resistors and the diodes and all checked good last part will be the RCA29/TIP29

I have tried 3 radios and the same problem. I just ordered the RCA29/TIP29 and will try that. The power supply is on a shelf and wired to a binding post block. So a pain and will check part when it gets here next week. The other 2 parts I replaced cost less than $8.00 and the RCA29 is 2 for...

So im back with the Astron power supply. Seems the volts are there 13.7 volts but when a load like keying a cobra 29 it sucks the voltage down I replaced the 2n3771 and the LM723 with same problem. So now im suspecting the RCA29/TIP29. The regulator board looks fine no burnt spots and any...

Well i think I found something that might work its a speaker to line/rca output. Has 2 channel only need 1 channel and has transformers built in. Suppose to take speaker level and drop to rca level so you can add an amp to the adapter. Ships from China so should get around July 25th. Hope it...