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here is an update on this ssb 140 telsat. I have run the radio on the 12v plug and all seems good 5 watt AM swings to about 10 watts and ssb about 13 watts. When run on AC I get about 4 watts Am very little swing and ssb about 6-8 watts max. I checked the Ac power supply and its dropping about...

Well i received brand new finals HG 1969 and 2sc2166. I installed in radio and same low SSB power and little swing on AM. Actually about 2 watts less on sideband 6 watts. Am about 5 watts and peak to 6 watts. Saying Ah on ssb i get about 3 watts and if i whistle i get about 8 watts max. I...

Here is the block diag. Gonna check transistor Q35-37-38 and see if 1 of these might be the culprit Q38 is the ssb ALC

Nomadradio Any suggestions what might be the problem with low power ssb on the telsat 140 radio. Was doing about 14 watts then stopped all of a sudden. I have new finals on the way gonna change and see what happens a 2sc 2166 and a 2sc 1968 gonna replace with HG finals. thanks

I tried and still low power Radio is all set adjusted to factory spec Im waiting for some HG final replacements to see if its a final even though they check fine. Seems like I stated low audio into the ssb carrier or maybe be a electro cap shorted to ground. that will be my next step checking...

Well on RV2 I can adjust the ssb from 1 watt to about the 5 watts its putting out low saying ah into mic if i whistle i can get about 8 watts and radio is all tuned for peak power. Am power is about 5 watts with very little forward swing

I will check that out this morning thanks Here is picture of the RV pots/controls only one to control the ssb is RV2 SSB power. Which do u suggest? thanks

Anyone have any Idea why the ssb is low power going out like 6 watts peak whistling and just talking about 2 watts out I have tried to check out and struck out.

Yes you can add a channel kit to this Road King model. Not the FM just Am model. This radio is all surface mount but the A kits high/low kit will work or just a single band board will work most go 40 below. Kits are 3 wire install and my kits have a 3 position rotary switch where on this radio...

The trimmers are working as I can adjust from 0-5 watts on am and also 6 watts on ssb so they are working.

My scope is out to lunch looking for another good used one. the problem is the ssb power is only 5-6 watts out. I have aligned the radio to the service manual and is on frequency but very low audio input to the rf carrier. When i talk in mic it will do 2 watts ssb and whistle in mic it will...

Well i searched the forum and found some post on low rf power for the telsat 140. I replaced the balance modulator and I do have 8v on pin 6 with transmit. I checked c78 for short and that is fine. The radio is tuned to 5watts AM with very little swing and 6watts ssb. When i talk in mic it...

Was using the radio this morning working fine then something happened now just about 2 watts on Am and about 2 watts on ssb both lower and upper. Radio dead on frequency and receive is great No burn marks on the bottom pc side. I pulled bothe finals 2sc 1969 and 2sc2166 abd both are ok. Seem...

Nomad thanks for the Info the pll02a ssb radios not AM radios uses a 10.0525 master xtal and a 10.165 will give highs 40 above and 9.94 will give lows 40 below these xtal can maybe with a trim cap adjusted for the half channels. Just like the master xtal in the mb8719 radios that use the...

Has anyone been successful in getting the 5kc and 10kc mods on the pll02a SSB radios like the GE Superbase the Lafayette Telsat 140 or the midland 78-999 and other SSB radios Says on the net that pin 4 is not connected to anything but has an internal resistor. Says to take pin high or low and...

Thanks for the info i was able to make an adapter to go from 4 pin cobra to 5 pin din lafayette

Hi Dan. thanks im all set found time to get down to shop and was able to make an adapter 4 pin to 5 pin din for the telstat ssb 140

Looking for the mic wiring for the lafayette 140 ssb 5 pin din mic. I want to make an adapter to use a cobra 4 pin standard mic. I looked in the owners manual and the service manual and could find nothing. Searched the net and still nothing pops up. I have not had time to play with the...

Dan thanks so much for doing the copy i needed for the telstat 140

Thanks so much appreciate your time