开云体育

?

I found the Drake 2B Instruction Book on line, but it is a digital copy made after several generations of machine copies - it is not very clear in some places.? A couple of the pages are also out of order.? I have found a different digital version that is cleaner and has a few additional pages of information.? Interestingly, this other version also has a slightly different description of the crystals and how to use them - probably a version made that was before or after the version now on line.

?

I am attaching this cleaner version here to share.

?

Richard

W2ONE

Richard,

Your 2B looks in good condition, good buy.

A Heathkit calibrator is a good substiute for the Drake.? The only thing I would do is make some kind of bracket

to mount it down.? If those wires on its socket touch ground (or your hand!) damage can be done.

?

Diodes should work fine for a tube replacement.? I would have soldered them in myself but if they are making

good connection in the socket and don't fall loose, that should be ok.

?

So, how do we fix it?

You should be able to hear the calibrator signal every 100KHz? (KC as we used to say, hi hi).

There is a CAL switch on the front to turn it on.? You need to set the band and peak the preselector to hear it.

If you don't hear it, try all the bands, its possible the band switch or a band crystal is bad.

80meters is where I would start, it doesn't need a band crystal.

?

If you dont' hear it...

Remove each tube one at a time.? Make sure its the right tube.

Insert and reset each tube several times to clean its pins.? I would do all this first before I powered it up.

Also, work the bandswitch multiple times.

?

Oh FIRST THING.? Check the fuse, it should be 0.6Amp? (600ma) slow blow.? I have seen 6AMP fuses in radios,

that would not protect anything and would insure that if anything goes wrong you WILL have damage.

?

73,

Gary

WB6OGD