Hopefully this will give you a flavour of the content to come. I started working on guitar valve/tube amplifiers a little over ten years ago. I haven’t had much chance to work on them recently but here are two that I have designed and built some time ago.
I recently spent some time swapping out valves and listening critically to the tones produced by Little One. I concluded:
- That I prefer the sound of an EF86 in place of the EF83. You get ore gain therefore more distortion which sounds awesome (but you also get more hiss)
- Of the EF83 valves I tried, I preferred Valvo to Telefunken
- Mullard ECC83s really are pretty special. The sound is a lot crisper with a Mullard (rather than a Brimar) acting as the phase inverter
- Changing the ECC82 doesn’t change things much. I tried Mullard, Tungsram, Mazda and a valve of dubious origin and it didn’t make as much difference as I was expecting
To combat the his produced by the EF86s I’m going to try some Sylvania military-grade EF86s. I’ll update the sound-clips when they arrive.
I used The Camel on some songs that I wrote. Here are a couple of links so you can put the sound of the amp in proper context:
The singing isn’t great but I do like the sound of the guitars. The next project is going to be a small valve bass amp. I’ll post more information soon.