Here is a great chance to see what all hubbub about 45 and/or 2A3 tubes in a SET amp is all about. This low powered amp can take both types of tubes and is great for efficient speakers. The details:
This is a point-to-point wired SET that can take either 2A3s or 45 tubes. It was made by Waamamps and based on the JE Labs design, and currently sells for $1200 new. I'd like $OLD plus shipping, and would include a pair of both 45 (low hours) and 2A3 (under 10 hrs) tubes.
Below is the info on these amps from their website. The builder is also a great guy and was very generous in helping me out when I thought the amp wasn't working correctly (turned out the amp wasn't the problem). Info on the amp:
# Input connector - Two Gold RCA input jacks (Right & Left).
# Built-in volume control (does not need a preamp).
# Tubes 1-6SL7(Input) can be substituted with 5691 and 2-45 (Output) can be substituted with 2A3 and 1-5Y3 (Rectifier) can be substituted with 5U4.
# Normal input (R/L), Volume control, Power switch, IEC plug, Power indicator, Speaker terminals (8 Ohms) and Circuit protection.
# Circuit Type: Single-Ended Class A. All tube signal path, no feedback (4 Watts)
# Dimensions: W 13 1/2" x D 11 1/2" x H 2 1/2"
# Amazing Warm Sound
More from the builder:
"All my amplifiers are 100% HAND-BUILT. Amplifier layouts have been carefully designed using a combination of vintage and, high quality components. These components are brand new and consist of Hammond filter choke, Hammond Filament transformers, Illinois / Cornell-Dubilier electrolytic capacitors, Auricap capacitors, High quality conformal silicone-ceramic coated resistors, carbon resistors, IEC plug, gold-plated RCA jacks, speaker jacks, ceramic tube sockets, ceramic tube caps and power switch. Coupling capacitors are Auricap. Illinois electrolytic capacitors are used in the cathode section and Cornell-Dubilier electrolytic capacitors are used in the power supply section. Gold plated shielded wire is used in the input stage. All components are perfectly matched left to right for proper channel balance. Amplifiers are designed on a garolite board, with all handwired, point to point circuitry using less wire to prevent hum and all grounds are in the correct places. This design allows this amp to run continuously, with extreme quiet operation. All amplifiers have built in volume control and can be used with or without a preamp. You can connect any fixed or variable source output directly to the amplifiers. You can use the audio out from an iPod, CD, DVD, MP3, Computer, XM or SIRUS to the input connection of these amps. Amplifiers feature normal inputs, volume control, power switch, power indicator, right/left speaker terminals and circuit protection. They work great into any 4 and 8 ohms speakers."
Again, I'd like $OLD plus shipping.