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My Second Lafayette Telsat 140 clarifier problem help

Techno1

Active Member
Feb 21, 2022
193
48
38
49
New Hampshire
So i did fix the first Telstat 140 power problem now I have a second one.
Transmits fine good audio and power both AM and ssb.

Problem is Am is dead on
USb is dead on
Lsb is not

If I transmit on AM say 27.4050 dont touch the clarifier and switch to LSB I get 27.4028 when i should get 274040 LSB is low by about .0012.
On the schematic CT-1 adjust Am and LSB and CT-2 does the USB by itself.

I replaced the 50K pot and still the same

Some where when I switch to LSB seems im loosing a small amount of voltage so that LSB will stay on frequency 27.4040. It happens on all 40 channels.
The clarifier was unlocked with same problem so i connected 1 resistor and a diode and removed the voltage wire off one side of the voice lock.
With this happening I cant realign the clarifier to center slot.

Any help appreciated
Attached is a section of the area with the clarifier and ct1 and ct 2140 voicelock prob.jpg
 
Last edited:


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