02-09-2015, 05:56 PM
I fired this up at the weekend and played with various values of ht and also the resistances.
This runs quite well, not overly loud but a fair few stations and great reception on from a AMT3000. I Used 90 volts HT and -9 on gb 1, -1.5 on gb2
The resistors were all out and if you look at the base there is someone’s writing but ignore that – I put .25mOhm on the first anode and .5mOhm on the second, and 2mOhm on both grid leaks – that worked best. The valve holders are really neat and make the set easy to trace – a good thing for me
This is really a good looking set with the horn (how do you get the throat cover to stay in?) so its up on a shelf were I suppose it will stay till the kids take it down
I got hold of another valve holder that does more than just hold the valve, and a 1920's printed circuit board - I will take a pick later
This runs quite well, not overly loud but a fair few stations and great reception on from a AMT3000. I Used 90 volts HT and -9 on gb 1, -1.5 on gb2
The resistors were all out and if you look at the base there is someone’s writing but ignore that – I put .25mOhm on the first anode and .5mOhm on the second, and 2mOhm on both grid leaks – that worked best. The valve holders are really neat and make the set easy to trace – a good thing for me
This is really a good looking set with the horn (how do you get the throat cover to stay in?) so its up on a shelf were I suppose it will stay till the kids take it down
I got hold of another valve holder that does more than just hold the valve, and a 1920's printed circuit board - I will take a pick later
