Hello can someone tell me what is the original bias setting over the emiter for this amplifiers?
Thanks
Thanks
This is for the ZR1000.
About 15 mV across each RE should be about right. It's been a long time, but I recall telling production to increase bias until there was 30 mV from the top of a 0.33 ohm resistor to the bottom the 0.33 ohm below it.
I forget what value RE is used on the ZR600, and the schematic is missing from my file drawer, but a similar ~50mA per transistor would still be about right.
By now, you've set it to something, and you're happy. I personally used to set mine about 2x this value, but the market didn't want heat sinks that hot.
--Russell
About 15 mV across each RE should be about right. It's been a long time, but I recall telling production to increase bias until there was 30 mV from the top of a 0.33 ohm resistor to the bottom the 0.33 ohm below it.
I forget what value RE is used on the ZR600, and the schematic is missing from my file drawer, but a similar ~50mA per transistor would still be about right.
By now, you've set it to something, and you're happy. I personally used to set mine about 2x this value, but the market didn't want heat sinks that hot.
--Russell
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