The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

Last visit was: Monday 14th Apr 2008, 11:09
It is currently Sunday 5th Jun 2016, 12:54

guess i been busy in the last 8 years

evening all

just made some replys to posts over 4 years old lol deleted now

replaced the 2sa1012 with a tip42c and the fm is back fine
thanks for the link

fm audio is fine but ssb is realy bad

sounds realy bubbly and distorted like its getting badly overdriven
if i turn the mic gain down almost off or take off the test board out i can moniter the audio on anouther set ...

yaesu ft-847 hf/vhf/uhf
colt 1200dx
cobra148 gtldx
sandpiper mv10 160-6m vert antenna
and wires and bits everywhere

mic gain pot was shorted to ground so got the audio back

ssb audio was realy bad so checked the driver and final lol

had a 2078 as a driver and a a 2166 as a final

changed to 2166 driver and 1969 final and set the bias and the audio is great now

need a replacement for a 2sa1012 maplin dont ...

first some details about the radio

pb-010aa taiwan

on fm the transmitted audio is very low and same with all modes
on ssb i can hear my self on my 847 (close prox to the 148) but the 148 shows no deflection on s-meter when talking but when the roger bleep comes in i get full delflection 30+ and ...