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Check the voltage at each side of L11 in FM TX mode, if no volts check the mode switch as you may find a broken wire or a bad mode switch.

Good luck lots of wires around the mode switch.


I have checked and no volts either side of L11 in FM TX mode.

The wiring at ...

Thanks for the replies guys

I checked to collectors of Q9 and Q10 in FM tx and 0 volts

In AM around 5 Volts

In USB/LSB I get 13.5 volts

All help much appreciated

Tony

Hi all,

Can any one help with getting my old Concorde II back in order?

The RX is fine on all channels

The problem is the TX on FM/AM.

USB/LSB Seem o.k

I have it connected up to a SWR meter and ariel.

On FM when TX the SWR meter not move at ALL
On AM the SWR meter move a small amount when ...