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Help to indentify air variable caps.




 
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Author Topic: Help to indentify air variable caps.  (Read 2627 times)
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xe1yzy
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« on: March 03, 2005, 07:00:07 PM »

Hi to all

Does anybody knows the value of the following  air variable caps?

Hammarlund APC-50B
"   "      "    "  MC250M
JOHNSON      160-104.

They comes in a small 6146B CW transmitter circuit in the 1973 ARRL handbook, but dont say nothing about the value.

Thanks in advance !
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AB3L
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« Reply #1 on: March 03, 2005, 08:28:23 PM »

Does anybody knows the value of the following  air variable caps?

Hammarlund APC-50B
"   "      "    "  MC250M
JOHNSON      160-104.



From a 1947 Handbook, the APC-50 is a 50mmf. the "B" designation wasn't shown.

The MC250M shows 260 mmf.

Didn't find the Johnson
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xe1yzy
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« Reply #2 on: March 04, 2005, 10:47:42 AM »

Quote from: AB3L
Does anybody knows the value of the following  air variable caps?

Hammarlund APC-50B
"   "      "    "  MC250M
JOHNSON      160-104.



From a 1947 Handbook, the APC-50 is a 50mmf. the "B" designation wasn't shown.

The MC250M shows 260 mmf.

Didn't find the Johnson


Thanks a lot for your help OM. !
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