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Heyboer Metroamp spec Dagnall T2562 wiring Schematic
Posted: Sat Dec 12, 2015 5:19 pm
by white noise
Does anyone have a wiring schematic for a Heyboer Metroamp spec Dagnall T2562 vertical Power Transformer???
It has 14 wires:
2 Green
1 Green / Yellow
3 red
1 red / yellow
1 red / blue
1 Orange
3 blue
1 purple
Re: Heyboer Metroamp spec Dagnall T2562 wiring Schematic
Posted: Sun Dec 13, 2015 4:09 am
by neikeel
Just giving colours without their gauge and grouping off the trannny might not help, post a pic.
Stock wiring is here (scroll down):
I suggest:
- two green wires are fat = 6.3vac heaters to V7 socket
-green/yellow fat = heater centre tap = ground
orange is typically common primary
purple is 240v primary
blue is 220v primary
red si 120v primary
there will be bias feed and bias ground paired (put a meter on them)
I think yours has dual secondaries so this means 6 wires of which two will be the outer pair (hi volts 190v) two will be middle pair (170v ??) and the inner pair have to be tied together as a centre tap.
Did you buy this from a dealer or direct or second hand?
Re: Heyboer Metroamp spec Dagnall T2562 wiring Schematic
Posted: Sun Dec 13, 2015 11:20 am
by white noise
Neil,
I purchased it from Heyboer and they didn't send a wiring schematic.
I tested for continuity and separated the wires in picture:
Orange - Violet - Dark Blue - Red
Light Blue - Light Blue
Green - Green/Yellow - Green
Red - Red - Red/Blue - Red/Blue - Red/Yellow
Then tested the Ohms from Common (Orange) to the Primary wires.
Orange to Violet = 2.3 Ohms
Orange to Dark Blue = 2.0 Ohms
Orange to Red = .80 Ohms
Definitely agree with the heater wires that you posted:
"- two green wires are fat = 6.3vac heaters to V7 socket
-green/yellow fat = heater center tap = ground"
Re: Heyboer Metroamp spec Dagnall T2562 wiring Schematic
Posted: Mon Dec 14, 2015 11:32 am
by VelvetGeorge
Primary:
Orange - common
Violet - 240
Dark Blue - 220
Red - 120
Light Blue - bias
Light Blue - bias
6.3V heaters secondary:
Green - Green/Yellow - Green
HT secondary:
Red - full
Red/Blue - 80%
Red/Yellow - center tap
Red/Blue - 80%
Red - full
george
Re: Heyboer Metroamp spec Dagnall T2562 wiring Schematic
Posted: Mon Dec 14, 2015 4:09 pm
by neikeel
VelvetGeorge wrote:Primary:
Orange - common
Violet - 240
Dark Blue - 220
Red - 120
Light Blue - bias
Light Blue - bias
6.3V heaters secondary:
Green - Green/Yellow - Green
HT secondary:
Red - full
Red/Blue - 80%
Red/Yellow - center tap
Red/Blue - 80%
Red - full george
Excellent, thanks George, we were nearly there, it was the HT and 80% taps that were going to be hard!
Re: Heyboer Metroamp spec Dagnall T2562 wiring Schematic
Posted: Mon Dec 14, 2015 9:24 pm
by white noise
Thank you Neil and George!
I got her put in today and she has a 498 B+ and all biased up, way better than the old PT where I was running at 515 to 528 B+.
Terry