[HBQRP] VFO Complete

ssellmeyer ssellmeyer at inebraska.com
Tue Nov 22 16:19:35 EST 2005


And the toroid saga continues................

This afternoon I was able to wind 27 turns of # 22 gage wire on to the T-50-6 big yellow toroid core. That was the maximum amount of turns I found that I could wind on it. I'm sure 29 turns of # 26 would have fit easily versus the kit supplied # 24.

My power on readings were as follows:

1.  Using a Radio Shack frequency counter and touching the base of Q2 gave me a frequency readout of 2.625 Mhz. The Elmer 101 book says Approximately 3 Mhz. Hmmmmm, waiting for advice or comments from the rest of you on this. Good or bad ???
Using my RF probe gave me 1.250 vdc on the base. This is NOT a calibrated probe by the way so I have my doubts about it's accuracy.

2. Not using the RF probe but just using the regular meter probes I have :
Q2 base voltage of 2.257. Elmer says 2.17. Looks good to me.
Q2 emitter voltage was 2.411. Elmer says 2.4. Again looks good.

3. With L1 jumpered:
 Q2 base was 2.75. Elmer says 2.13.  Hmmmm ??
 Q2 emitter was 1.695. Elmer says 1.5. Hmmm again ??

Maybe I have a "strong" Q2 here??

Now to start reading and figure it all out ! !  Wish me luck on the understanding part ! !

Steve/WBØQQT






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