Quote:
Originally Posted by VintagePC
A'right... Welcome to 3+ posts of me talking to myself 
Anyhoo... just finishing up the underside of the cabinet lid. There were some large gaps in the veneer... Used an old trick I learned from my dad- take fine sawdust, mix with wood glue to make a fairly dry paste and _really_ _work_ it in to the splits. If you use sawdust from the same wood you're filling, then it matches the colour when you varnish it... just need to be careful to get rid of all excess or you'll have glue spots under the varnish.
Another question- Is it normal for the resistors to the radio tubes to get hot? I've got 2W jobbies in there now, (as on the schematic) and they get pretty warm... you can touch it for a few seconds but any more starts getting pretty uncomfortable.
Finally- did an adjustment on the trimmer for maximum reception-How long are those screws? it feels like it's about to fall out, so I backed it off a turn and left it at that. |
The screws are not very long, maybe just 1/8-inch (about 3 mm) or so.
They just work by changing the curvature of a spring blade forming one
plate of the small variable capacitor. As for the 2-W resistors, just make
sure the voltage on them is within spec, and keep them suspended is free
air (even though it's inside the chassis) not pressed against some insulator
that will impede convection cooling. The usual rule of thumb regarding
resistors is to keep the actual dissipation below half the nominal
power rating. Good night.