H'Ooooops ;D
The guy only sent me out one unit , when the auction clearly shows its two units .
Had to email the seller and throw a spanner in the works ,anyway Im sure it will all be sorted out .
The one that arrived is in good nick ,power cable is perished beyond use,tuning mech in desperate need of lube , all tubes correct and present ,although the tube rectifier has been replaced by solid state ,and a couple of resistors in series ,the 5 volt winding is available if nessesary . The size and scale of it is bigger than I thought ,Its really beautifully made ,everything looks way overspec, transformers of that bulk wouldnt be out of place in a vintage 50 watt guitar amp .
From the literature I read the makers took great care to produce an instrument thats a joy to use ,front panel layout is especially nice ,I can easily see why this unit holds a special place for anyone who used one . The manual is also a masterpiece in its own right ,all the test procedures are clearly explained and very easy to work through . It also happens to be one of the main types of audio oscillator used in the very earliest days of electronic music ,there seems to be a slightly unique wonk to the sound when you change frequency ,in other words the settleing time .
I'll do some cold tests first then wire it up and have a look . its still got the dreaded pink caps in place and everything else besides the rectifier wiring looks original too .
So the tube rectified version achieves better performance ,by the looks , wouldnt anyone have sworn if anything silicon diodes would have been better ? so can a tube rectifier actually reduce the distortion in audio, is that what were seeing here ?