Vox Night Train

[Macs_Amp]

I was wondering if anyone had the schematics to the Vox Night Train...

Could find almoust all the amplifiers model, but not this one...

Thanks a lot!!!

[Enzo]

My dealer site shows Night Train - model NT15H.

There is no schematic and no parts list there.

COntact Vox and ask for it.

As a 15 watt amp, it sounds like it should be pretty simple.

[Macs_Amp]

Yes, I find it simple and interesting...
I'll try to contact vox, thanks for the answer.

[dc098]

Any luck on the Schematic I'd love to take a look myself

[Blinker]

Ooops ! Try this :

[Macs_Amp]

Problem with the link...

Hi Blinker,
First of all thank you for the post...

I have problems with the link, explorer can't display the page...
Am I having a mistake with something? I just click on your link.

Thanks a lot

[Blinker]

Sorry for the bad link back there.

I drew the schematic from the PCB. The tone stack and PI had me going in circles so if you see anything weird on there let me know. The input switching on the Cliff jack is a bit funky too , some bits are on the metal chassis and others are grounded to the PS.

[Macs_Amp]

Thank you!!!!!!!

[kt77]

that triode/pentode labeling doesn't make any sense....according to 'your' sch...it switches between UL and std pentode mode

so what is it really?

[Blinker]

That's how it is wired , I've just checked it . In "Triode" mode there is 470 Ohms between pins 7 & 9. In "Pentode" mode pin 9 goes to the screen supply via the 470R.

[kt77]

ah, now I see....the way you had it drawn, it appeared to have UL taps.....so I blame you for my stupidity

nice schemo, btw

[Gee]

I drew the schematic from the PCB.

Are you sure the master volume is correctly drawn? It doesn't look like a normal PPIMV. If it is correct then can anyone explain why it is done that way? If VR1 was 470K and C15 & C30 not present then it would make more sense.

[Blinker]

found this on prowessamplifiers.com :

[jmaf]

That tone stack just keeps rocking 50 years later...

[strat6269]

i have just been looking at your nt schmetics and it is easier to understand than the ones i found on prowess have you ever seen a bm for the amp