(03-02-2014, 07:24 PM)Aerodyne Wrote: So what sort of input is it designed for? I think line level, a CD or tape player, for example.
Tony
Quoting from the spec Tony:
Item specifics:
Type: TUBE AMPLIFIER
Number of L/R RCA Inputs: 1
Number of Channels: 2
Number of Digital RCA Inputs: 1
Brand: LITTLE-BEAR
Audio Outputs: Stereo L/R RCA
Model: P-4
RMS Power: 20mw/per channel
Audio Inputs: Stereo L/R RCA
Hence, it doesn't mention the level of input called for - only the output. As you'll see, all it says about the input is that it has two RCA (phono sockets) for L & R channels! I'd imagine that even with the low HT, with a pair of twin-triode valves it will have reasonable gain.
My son intends to use it for a vintage 1970 Sony 'Optonica' RP114 record deck which he recently bought on e-bay as NOS - still boxed, and discovered along with lots of other stuff in a locked up neglected workshop. Not sure what the cartridges on it are. (There are two - they linear track each side of the record in sequence so there's no need to turn over the record).
I might add of course, that as Tony will know, there was a dinky solid state home-brew mono/stereo pre-amp design in Winter 2011 BVWS Bull, with full constructional details, PCB and so forth.
Oh well, my son's saved me etching a PCB for him!
Regards, David.
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'







