My neighbor wants to donate a fairly beat Hallicrafters HT33 linear to me. It has a HB outboard power supply and in general has been played with. He says the tube is beat and the PL172 is of unobtanium.
Has anyone tried a 4CX1500 converstion for old PL172 circuits? The specs look reasonably close. There is plenty of room etc etc.
I dont really need another project but if its free its for me.
Ideas?
TM
Hi Tom,
Since you said it has an outboard power supply now, I would gut the old power supply, including the string of VR tubes used for the screens. [I owned one myself years ago and did just that]
You now have plenty of room to grow in there.
I would then put in a pair or triple 3-500Z's - or some other hi-mu GG triode
. Simplicity and clean. a 3CX-1200, 8877 - the possibilities are many.
73,
T
BTW, I had someone today tell me that my email print type is too small when received. I tried sending it in enlarged font, but it goes back to 8pt. when sent out. Anyone know how to increase the font in Outlook Express that will stick when emails are sent out? I tried the options page, but they don't seem to do the trick.
