The OT secondary is one continuous winding, so you must have continuity between all 4 wires.

Versuche es jetzt noch einmal. 
Die Einstellung sollte über das Menü mit deinem Benutzernamen erreichbar sein und dann das Untermenü "Profildetails". 
Zumindest funktioniert das bei meinem Testbenutzer so...

Grüße, Dirk

Hi,

How is your PT hooked up on the primary side?
Do you also measure only 4mV AC(!) when you disconnect the grey/pink wires on the EZ81 and the brown one's on the first EL84 (V5)?
The black Center Tap of the 2nd 6.3Vac is soldered to GND?
The Orange Cable not connected?

Let us know...

Zitat von: Showitevent am Okt 27, 2026, 10:12

Zitat von: Dirk am Okt 27, 2026, 09:49Schau mal in deinen Profileinstellungen

Grüße,Dirk

Das scheint administrativ deaktiviert zu sein. Oder hat jemand schon rausgefunden wo man das Profilbild ändern kann?

Hab bisher auch noch keine Möglichkeit gefunden das Profilbild zu ändern...und auch andere Dinge ändern geht nicht.

Nevertheless, Danke an Dirk dass er das Forum erhalten und aufpoliert hat. Bedingt zwar etwas Umgewöhnung nach all der Zeit, aber das wird schon....

Gruß
blues

Hi Dirk,

ein Dankeschön auch von mir !

Grüße

Michael

Zitat von: Dirk am Okt 27, 2026, 09:49Schau mal in deinen Profileinstellungen

Grüße,Dirk

Das scheint administrativ deaktiviert zu sein. Oder hat jemand schon rausgefunden wo man das Profilbild ändern kann?

Schau mal in deinen Profileinstellungen

Grüße,Dirk

Okay, I did some quick measurements with the multi-meter, and gave me the following outcomes:

I kept the black comm wire on ground, and then measured at the points:
- At the blue, black and grey/brown wire I measure 235v AC. So that's good.
- When measuring the heater wires, the grey and pink one, I measure about 3,9v-4v AC, not the 6,4v as on the diagram.  At the two brown heater cables, I measure 4 mV actually... So that's strange...
- If I measure between the grey and pink heater wire, I also get the 4 mV!
- Also, the indicator light is not switching on as well.

Zitat von: Dirk am Okt 27, 2026, 05:43Ja, leider können die "alten" Profilbilder nicht wieder verwendet werden, daher diese bitte neu hochladen. Danke !

Hi Dirk, und wo? Ich finde keine Möglichkeit.
Dieter

Hello,

I hope you guys can help me. I'm currently trying to finish the TT 18 watt Marshall style combo. Not the TMB, but the one with tremolo. I had it 'ready' I thought, turned it on and nothing happened, even the light-indicator didn't turn on. I'm fairly sure about most of the work, except for the transformer wiring-part.

What confused me was the following:
- The mains transformer differs a bit from the 'old version', as it has more wires and different colourings as opposed to the lay-out and photo's from the project-page. A legend was of course provided, indicating the wires and colour-scheme, still there's some confussion.
- I'm based in the Netherlands, so I had to wire it for 230 volts, and connected the black (the first wire indicated on the legend, mentioning '0'. Not the black wire Center Tap wire, that's indicated 3,2A. This one I wired to the Star Ground) and the only blue wire (110v) to the power switch. Then I soldered the brown wire (120v) to the grey wire ('0', but not the grey-heater wire, I think...) together. As the power winding diagram indicated those are wired in series, or did I incorrectly asume this was the right way in doing it?
- The one grey wire, that would be Anodic center tap wire (100 mA), I wired to the fuse socket.
- The white and orange wire are cut off and put a heatshrink on, I left those wires alone.
- My foremost confussion is about those 3 grey wires I think, and if I picked the correct ones for their function, and didn't mix them up somehow...

As for the out-put transformer, well actually more about the impedance switch:
- When I first wired it up, I used my multi-meter on the continuity setting. I measured each outputwire (so the 4, 8 and 16 ohm wire) as seperate from each other. But now I'm measuring them as being connected to eachother, even at the three different settings of the switch. Is this how it's supposed to be? If not, then I'm confused how this came to be, as I measured them being correct at first?!?!

I tried to be as clear as possible in my description. I hope someone can help me out, many thanks in advance!

- Timothy, from The Hague, Netherlands