Hagenuk Ha5 k 39b sensivity?

[OH5YW]

I have nearly in working condition Hagenuk Ha5k39b.

Tx is ok but receiver sensivity is only about 3uV. I have changed tubes. Is there anything else I can do or is this normal sensivity?


Kari OH5YW

[Funksammler]

The manual states a sensitively of 40-50 uV voice and 4-5 uV CW so it seems you are about right. It is only a straight three stage regenerative receiver (so one stage less than the Torn.E.b).

regards,

Funksammler

[la5he@yahoo.no]

Even in 1950s, when we used it on amateur bands, the sensivity was the not very good. So don't despair ! hi 73 de Ragnar