Quote:
Originally Posted by mickm3for
Hi with the heter and ht stable the drift is not realy a issue in my opinion
Info on huf puf circuits http://www.hanssummers.com/huffpuff.html.
The MKRS 80 tranceiver uses one and is horrid to use, the tuning is like a worn slomo drive , they work by sampling the frequency and comparing this with a xtal then ajusting to corect any error, on my 2000b and 2000mk1 having stable heater and ht supplies drift is minimal after around 30 mins i have the circuit for the ht mod, pm me if required, hope this helps Mick |
Thanks Mick, some interesting circuits there, will have a close look and think about it. The problem i had with my KW which i used extensively during the 80/90's was i was mainly using it on CW with an "Insect" audio filter, a little drift was a bit more of a problem. But agree after it had been on for about half an hour it did settle down.
Regards David