Roender's FC-100 Rev.1 Group-Buy - Page 22 - diyAudio
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Old 13th September 2012, 10:03 AM   #211
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Ooooopps!

Best regards - Rudi
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Old 13th September 2012, 10:29 AM   #212
AndrewT is offline AndrewT  Scotland
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Rudi,
put me in for 2 shunt regs as well.
I already have two from my Roender supply.
BTW,
on initial testing they are not as good as the Salas style. But they are far smaller and thus easier to accommodate.
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regards Andrew T.
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Old 13th September 2012, 10:37 AM   #213
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You are welcome, Andrew.
The size of the shunt PCB is 77 x 75mm.

Best regards - Rudi
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Old 13th September 2012, 11:12 AM   #214
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This is the shunt-PCB, looked at from above, "seen-through".
The red tracks mean: solder a wire manually.
These 3 wires have not been worth - in my eyes - to order a double-sided PCB.

You have various grid-options for the capacitors.

Best regards - Rudi_Ratlos
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Old 14th September 2012, 04:27 PM   #215
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Dear Rudi,

It is a year that I'm collecting material to decide if to go with a tube amp or a solid state one, and the result was to build a hybrid one. That's why, in these months, I'm collecting components in order to build Ciuffoli's Amp End (Amplifier End by Andrea Ciuffoli) or Yuriy Nagorny hybrid (??????????? • ?????? ?????).

Anyway it is really impossible to decide on paper between "Amazing tube sound" (with quite big THD) or "THD excellence" (with "flat" Transistor sound)?

Probably the best is to build both and listen the result... possibly without invest a lot of money...

Anyway it is some time that I look with great interest at this amp, since its pubblication from Roender, and one year ago ordered from on-semi 10 NJL0281 and 10 NJL0302; plus, on ebay, bought some sk170 and SA1360 and SC3423 (hoping that they are not fakes).

This seems to me a great opportunity to get good PCBs so, if possible, I would like to join to this group buy. From above considerations I would like to limit my request to:

2 AMP PCB
2 Shunt PCB
2 LS Protect PCB
1 Soft Power-on PCB
6 0R1 resistors
1 capacitor MKP 1839

Location: Italy

Sorry, but I never take part on a similar GB, so if You are so kind to explain me how it works (how to pay, when will the material will be ready, etc). - even through a Private Message, so not to bother other members...

Kind Regards

Fabrizio
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Old 14th September 2012, 05:27 PM   #216
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Fabrizio,

you are very welcome! I put down your request into my EXCEL-sheet - see the image attached.


I will close this group-buy in one week (weekend 22nd / 23rd of September).
I will not accept any new request/order after this date.
I will then wait, until you PAYPAL'ed me (at latest until weekend 29th / 30th).
I will order the PCBs and components (1µF capacitor, 0R1 emitter resistor, NJL transistors) then.
The lead time for the PCBs is 12 days, meaning: I expect to have the PCBs by October 13th/14th in my hand and will send to you all
the components (PCBs, capacitors, emitter resistors, NJLs, ...) according to your order.

I will send to you all the "FC-100 Builder's Manual" next weekend.

Do you have any further question?

If you have a question that I am not able to answer: maybe you can contact ANTO.
ANTO is an Italian guy, who is going to build the FC-100 as well and whom I appreciate very much.

Best regards - Rudi_Ratlos
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Old 14th September 2012, 06:20 PM   #217
PeterH is offline PeterH  Germany
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Hi Rudi!

Please count me in for a stereo set of the power transistors and emitter resistors.

Regarding the other transistors:
I ordered the Toshibas from BG-Electronics and they look pretty genuine to me. But I don't know about their current batch, so better ask before buying.
And for the SymAsym I ordered 2sk170 matched quads from eBay Kondensatoren, Röhren Artikel im Himmels Röhren Shop Shop bei eBay!. Offset is only a few millivolts with these so I hope it's ok

Thanks again for this great group buy!
-Peter
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Old 14th September 2012, 08:29 PM   #218
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Originally Posted by Rudi_Ratlos View Post
... I want my brains to stay alive and active .
What about the Buffalo Theory?
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Old 14th September 2012, 09:07 PM   #219
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Peter: thank you for your interest.

Franz: I will talk to my "fitness-coach" about your suggestion tonight .

Best regards - Rudi_Ratlos
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Old 14th September 2012, 09:35 PM   #220
10y is offline 10y  Italy
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Quote:
Originally Posted by Rudi_Ratlos View Post
If you have a question that I am not able to answer: maybe you can contact ANTO.
ANTO is an Italian guy, who is going to build the FC-100 as well and whom I appreciate very much.

Best regards - Rudi_Ratlos
Rudi,

happy to share experience about this fc-100 adventure. Honoured for your kind words. Let me know how I can help you, if you need.

Anto
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