Same as in HeyWhat section, maybe here is the better place to ask the following...

I am about to purchase the HeyWhat kit but would like to try with transformers built in Europe. Not that I don't trust Nik transformers (I already have the OTS working great), but trying to reduce costs including shipping and VAT, customs...

Here goes, options for 504 OL (50watt):

Output transfomer:
http://www.welter-electronic.de/bauteile/trafos/uebertrager/standard/standard_uebertrager.htm

type Ü4
50 Watt Übertrager - RAA: 3,4kΩ - für 2xEL34/6550 - Output 4+8+16Ω - Der Übertrager wird nachoriginal alten Marshall® Trafowickeldaten bei uns hergestellt. Die Wicklungswiderstände der beiden Primärwicklungen A1 zu+ und A2 zu+ sind durch unsere präzise Wickeltechnik absolut gleich. Maße 98x80x93mm - 2,2kg -

type Ü9/4oD
UL 40-50 Watt Universal-Übertrager - RAA: 3,6kΩ - Output 4, 8 und 16Ω mit SG-Anschluss - für 2xEL34 oder 2x6L6GC - Maße 97x80x91mm -  sonst wie Ü 9/4.

are closest to specifications.


For the Power Transformer:
http://www.welter-electronic.de/bauteile/trafos/netztrafo/musiker/sonder_trans.htm

type N 9 F3
Netztrafo mit folgenden Daten: 360-340-52-0-340-360V - 140/140mA - 5V 3A - 6,3V 4,8A  Universal Netztrafo

N 13 F2+3
Netztrafo mit folgenden Daten: 360-320-53-0-320-360V - 200/200mA - 6,3V 5,8A - 5V 3A

or N15 E-BS40
BV.070907MD
Netztrafo mit folgenden Daten: 0-320-360V 230mA - 50V 50mA -6,3V 5A. Dieser Netztrafo hat die gleiche Bauform (MD85)  wie der original Netztrafo von Echolette®  BS40

Any help is greatly appreciated, thanks!!!

I am about to purchase the kit but would like to try with transformers built in Europe. Not that I don't trust Nik transformers (I already have the OTS working great), but trying to reduce costs including shipping and VAT, customs...

Here goes, options for 504 OL (50watt):

Output transfomer:
http://www.welter-electronic.de/bauteile/trafos/uebertrager/standard/standard_uebertrager.htm

type Ü4
50 Watt Übertrager - RAA: 3,4kΩ - für 2xEL34/6550 - Output 4+8+16Ω - Der Übertrager wird nachoriginal alten Marshall® Trafowickeldaten bei uns hergestellt. Die Wicklungswiderstände der beiden Primärwicklungen A1 zu+ und A2 zu+ sind durch unsere präzise Wickeltechnik absolut gleich. Maße 98x80x93mm - 2,2kg - 

type Ü9/4oD
UL 40-50 Watt Universal-Übertrager - RAA: 3,6kΩ - Output 4, 8 und 16Ω mit SG-Anschluss - für 2xEL34 oder 2x6L6GC - Maße 97x80x91mm -  sonst wie Ü 9/4.

are closest to specifications.


For the Power Transformer:
http://www.welter-electronic.de/bauteile/trafos/netztrafo/musiker/sonder_trans.htm

type N 9 F3
Netztrafo mit folgenden Daten: 360-340-52-0-340-360V - 140/140mA - 5V 3A - 6,3V 4,8A  Universal Netztrafo

N 13 F2+3
Netztrafo mit folgenden Daten: 360-320-53-0-320-360V - 200/200mA - 6,3V 5,8A - 5V 3A

or N15 E-BS40
BV.070907MD
Netztrafo mit folgenden Daten: 0-320-360V 230mA - 50V 50mA -6,3V 5A. Dieser Netztrafo hat die gleiche Bauform (MD85)  wie der original Netztrafo von Echolette®  BS40

Any help is greatly appreciated, thanks!!!

Hi there!

Same thing happened to me. Turns out my power trannie was blown. I purchased OTS few years ago, probably very early version. Later versions had their PT revised and replaced with better design.
I had my PT rebuilt locally.

Sorry for not so good news

Fred

I guess I am not going to order much through UPS. Their shipment table is just unbelievable.
15,0 kg to Austria is $202, shipping the same to Slovenia or Croatia is $417. Slovenia is neighboring country to Austria and both are in European Union.
DHL on the other hand has the same shipping quote for Austria, Slovenia and Croatia and goes for $352. That's a lot.
What happened to EMS, their service was very good and quite affordable?

Fred

Damn guys, you're making it so tempting!!     

Ha! Greetings to you too!
See mcinku, we are not alone in this local stuff!!   

I guess it wasn't so bad, just exchanging hello's on local familiar language. Hope we won't get punished by Forum Authorities.
 

Genijalno, a ja lutam po svetu. 

Lep pozdrav, sosed!

BTW, you're my neighbor, sused.

I am in Zagreb :-)

It looks like 345-0-345 is fried. But have to check with more precise DMM.
And, since the amp is on desk, it's time for mods and tweaks :-)
This is a 50watt stock OTS built according to Nik's layout from last year.
I guess I will try tweaks you posted in:
http://ceriatoneforum.com/index.php?topic=1000.msg7198#msg7198

I'll first try with bigger caps on Power stage (mine are still 100uF and on latest Nik's layout is 200uF)
then FET will be out and replaced with the Deep switch
pre OD pot to the back
...

Thank you all!

This chart is exactly what I needed.
On the PT there is a sticker saying 3/12 07 so I guess it's the older one.
Only thing that worries me is why it went bad. Must check everything in the amp..
Any suggestions what can/could cause PT goes bad, or it can be just bad PT
Anyway,THANKS!!!!

Power On amp (on standby) and there goes fuse. Amp was working fine for several months, I assembled it myself.
I disconnect all the wiring from PT except PINK (220V) to switch and Black (0) that goes to mains input
Power On - fuse burned again.
I measured the resistance between taps but not sure what should I expect, transformers are not my cup of tea so to say.
Please any knowledge/advice is greatly appreciated, what measured values should I expect between taps (with the transformer disconnected of course), 0's, grounds (E) to to be sure that is something wrong with the PT. Except it's blowing fuse every time :-)
One more - I was using Fast blow fuse instead of SLow blow, didn't have any at home, but if the tran is OK that shouldn't matter that much, right?

THANKS!!

Green = Boost ON - bypasses the tone stack and add boost to both clean and OD when engaged..
Search for PAB on forum

Hey thanks!

I sort of forgot about the Tonebones but I will order pair of those pretty soon then!

Best regards,

Fred

Actually I am not to worried about the higher voltage on 6L6, rather interested in what should be measured on V1a..?
If my voltage (176-180V) is too low, what can be done about that and is that a problem?

Thanks