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Old 18th Mar 2021, 11:15 pm   #22
Dekatron
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Join Date: May 2009
Location: Linkoping, Sweden
Posts: 1,282
Default Re: AVO 163 amp board ~ transformers

Specs for Oscillator transformer:

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Oscillator Transformer:

PRIMARY:

Resistance: 85 Ohm +/-10% at 20C

SECONDARY:

Resistance: 27 Ohm +/-10% at 20C

Voltage test: Apply 1 Volt RMS at 15 kc/s from a suitable oscillator to the primary winding. Measure open circuit secondary voltage. This should be 0.5 Volt RMS +/-5%. Use a Hewlett Packard VTVM model 400H to measure these voltages.

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