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Heath-Zenith (Heathkit) Frequency Counter Model SM-2420
462ron
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#18

05-09-2020, 12:04 PM
In looking at the schematic for the sg-8, I don’t see any way to adjust each band so the frequency aligns with the dial setting. I’ve never had that problem with my generator. Some bands are off slightly so I just adjust the dial for the frequency I want by watching the counter. Maybe try a new 12AU7! I’ve never used my generator to align an FM radio yet. I am only guessing here but I’m thinking you might not hear the 400Hz modulation on FM. Because the generator puts out amplitude modulation that a frequency modulation set won’t respond to. Anyway, I found the whole assembly manual for your generator here...http://tubularelectronics.com/Heath_Manual_Collection/Heath_Manuals_S/SG-8/SG-8.pdf. Might have some useful info in it for adjusting your generator!

Ron
Bendix 0626.      RCA 8BX5.   RCA T64
Philco 41-250.    Philco49-500
GE 201.             Philco 39-25
Motorola 61X13. Philco 46-42        Crosley 52TQ
Philco 37-116.    Philco 70
AK 35                Philco 46-350
Philco 620B.       Zenith Transoceanic B-600
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RE: Heath-Zenith (Heathkit) Frequency Counter Model SM-2420 - by 462ron - 05-09-2020, 12:04 PM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Test Equipment