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Johathan,
Your L190, a 93uH peaking coil in the plate circuit of the 1st video amplifier is part of a series-shunt compensating filter netowrk used to optomize the bandwith perfromance of the amplifier. A 100uH inductor should be OK. I may cause a bit of a change in the resopnes of the amplifier, but you likely could not see the diferance.
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John Folsom
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