However to be clear I am sure there is a simple way to use a SET for a preamp. The whole original reason for this was I realized that most RCA interconnects used about as much power as my 5 watt 6b4g tube put out. So I am going to try straight wiring my RCA interconnects directly to the neg and pos terminals using the RCA shielding as the neg and the center as the pos. The low power SET amp may not like this due to impedence but there are ways around that as per my last message. I will add a resistor(8 ohm)or(4 ohm) in parrallel and in series to lower voltage and amperage or just one way. This is the easy way to attempt this feat. I am using the volume control on my SET amp as the volume for my stereo now but I could put it after my preamp and still use the SS preamp as volume control.
SET pre-amplification?
I recently took an old 6b4g SET amp and converted it into a preamp. WOW!...I never have been so close! I get 90% of that SET sound but with the benefit of a higher power tube or SS amp at the end of the chain. I am still playing with this and I have found the only draw back is hum. It is 60 Htz which is normal heater hum so possibly the filaments should be DC heated not AC. Just sharing so you to can experiment. Good luck!
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- 14 posts total
- 14 posts total