View Single Post
Old 3rd Dec 2021, 5:17 pm   #34
HowardB
Pentode
 
HowardB's Avatar
 
Join Date: Dec 2017
Location: Staines-Upon-Thames, Surrey, UK.
Posts: 122
Default Re: Taylor 65B Sig Generator: Dodgy Waveform

Hi 1950,

I disconnected the smoothing caps as suggested.
(I assume that's what you meant, they are C1 C2, or C5 C6, depending on which cct diagram).
The photos below show the input (anode) and output (cathode) waveforms.
So it appears that we have half-wave rectification!
Just checked the wiring on V1 and the 2 anodes are connected together.
Is this wrong?
The diagram below which I think comes from the Taylor Instruction Manual shows the anodes to be separate and connected across the transformer secondary.

By the way, the transformer primary is set for 240v.
V2 heater is 6.7v ac.
Attached Thumbnails
Click image for larger version

Name:	IMG_20211203_151932.jpg
Views:	53
Size:	84.6 KB
ID:	247206   Click image for larger version

Name:	75409=13749-gb_taylor_65b_sch_v2.jpg
Views:	46
Size:	78.7 KB
ID:	247207  
HowardB is offline