Hi
I’m in the process of building my first 45 tube amp.
I’d like to give it a try without spending too much, so something with a good ratio price vs performance would be great.
My OPT will be Edcor 15W so this should gives you an idea of the overall cost of the amp.
Would you have any recommendations for the 45 output tube, brand, etc.?
They don’t even have to be test great, just good would be ok for now. If I don’t really like the overall sound at least I won’t have spent a lot. I’m aware that the overall sound of an amp is not just based on the output tube but it still has an influence.
Maybe drop me a PM if you feel like getting rid of some 45 tubes you don’t plan on using.
Thanks
Eric
I’m in the process of building my first 45 tube amp.
I’d like to give it a try without spending too much, so something with a good ratio price vs performance would be great.
My OPT will be Edcor 15W so this should gives you an idea of the overall cost of the amp.
Would you have any recommendations for the 45 output tube, brand, etc.?
They don’t even have to be test great, just good would be ok for now. If I don’t really like the overall sound at least I won’t have spent a lot. I’m aware that the overall sound of an amp is not just based on the output tube but it still has an influence.
Maybe drop me a PM if you feel like getting rid of some 45 tubes you don’t plan on using.
Thanks
Eric
I finished my first 45 se tube amp two months ago. I bought 6 marginal RCA 45 of ebay, to test with. Worked fine for me. No guaranties though. 🙂
The Get Set Go originally intended for 6B4G, will of course need to be modified a little to suit 45 type tubes.
Thanks
Eric
I’ll probably also buy from eBay for now but I’d still like to know which brand to look for...
Thanks
Eric
Are you after used, NOS or current? If NOS or used, then matching could be a factor? eBay is a pretty efficient market. Maybe if it is collection only, and local, or an auction that ends at 3am on Christmas morning then you might strike lucky.
If you don't get lucky with the 45, Russian Svetlana 6C4C tubes are available for good prices and are a very good version of 6B4G. I use them happily in place of 300b when power isn't an issue.
I don’t really mind used, NOS would be great. Even weaker tubes would be ok, I basically would like to know what a 45 sounds like. If I don’t like what I’m hearing I’ll convert the amp to use 2A3 or 6B4G, not sure which one.
"I’ll convert the amp to use 2A3 or 6B4G"
... if you have appropriate output transformer (5k for 45, 2k..3k5 for others).
... if you have appropriate output transformer (5k for 45, 2k..3k5 for others).
46 and 47 will be in the same ballpark and - especially the latter - more economical. No first hand experience though. Triode-strapped. 4-5-6-7.
Simon
Simon
Having used 45, 2A3, 300B, etc, whether you will "like" 45 will depend on what speakers you use, e.g. actual sensitivity and impedance curve, not what the spec sheet states.
Nobody recommended a brand of 45 over another so I’ll assume based on the lack of answers that all the 45 NOS are probably sounding about the same in a dedicated amp, using the same hi efficiency drivers so it’s time to go shopping.
Thanks
Thanks