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Roender's FC-100 Rev.1 Group-Buy

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find out that some parts are missing in the BoM:

LS-Protect
1x BC 517 ist missing (need 1 per PCB)

FC-100 AMP
only 4x 2,2R are included you need 6x 2,2R per PCB

MKS-4 100N -> need 2 per PCB only 1 ist included

The Spacing of MKH100-15 470N is 15 mm does'n't fit to the PCB-Spacing

Shunt Regulator

missing the 2x 2,2nF and the 2x 2,2µF Caps included are 2x MKH400-7,5 4,7N ??

maby Rudi can explain what todo with the 4,7N :)
 
Nico,

LSProtect: instead of the BC517 you can take a 2N5551, BC546 / BC550, ... as well.

FC-AMP: you need of course 6 base-stoppers 2R2. You need 2 MKS4 - 100nF.
I cannot find the 470nF that you are talking about.

Shunt-Regulator: REICHELT does not offer 2.2µF MKT capacitors. These capacitors are "bypassed" by ceramic NPO capacitors.
I remember that REICHELT did not offer 2n2 at the time, when I added this cart. That is why I included 4n7. The 4n7 will do it as well.

Best regards - Rudi-Ratlos

P.S. It is not possible to change a public cart. The only way to change things is to delete the old cart and add a new one
(with corrections made). But then the URL I sent to you all is no longer valid.
 
free set of PCB

Hi guys,

For potential customer I can offer my unused set of PCBs:
FC-100 pcb - 2 pcs
Shunt reg. - 2 pcs
LSProtect - 2 pcs
Soft Power on - 1 pc
Futaba resistor - 12 pcs
Matched JFET - 2+2 pcs

You can pay via paypal, or EUROGIRO services ( usualy is providing on Post offices )

price: 80 EURO ( including postage fees )
contact: milandks at pobox.sk

regards
milandks
 
Hi guys,

For potential customer I can offer my unused set of PCBs:
FC-100 pcb - 2 pcs
Shunt reg. - 2 pcs
LSProtect - 2 pcs
Soft Power on - 1 pc
Futaba resistor - 12 pcs
Matched JFET - 2+2 pcs

You can pay via paypal, or EUROGIRO services ( usualy is providing on Post offices )

price: 80 EURO ( including postage fees )
contact: milandks at pobox.sk

regards
milandks
I could be interested to take the following items:
FC-100 pcb - 2 pcs
Shunt reg. - 2 pcs
Futaba resistor - 12 pcs
Matched JFET - 2+2 pcs
Can you give me a price with shipping included?
Thank you.
 
Anto,

I have 2 FC-100 AMP PCBs left.

I do not have any other PCBs, for example: I do not have the shunt-PCBs, but you can start
with a LM317 / LM337 voltage regulator for the frontend.
The frontend needs +/- 37VDC @21.5mA.

fc-100610giubc.jpg


If you are interested, I will check, if I have any other "hard-to-get" components for you.
Send me a PM.

Best regards - Rudi_Ratlos
 
Group-buy Round 2

Gentlemen,

after having received several requests concerning the build of Mihai Rauta's FC-100, I feel obliged to open Round 2 of a group-buy for this amplifier.

I will once more not only provide you the PCBs, but will assist you in getting the "hard-to-get" components, like: NJL0 - transistors
(I will match them for you), MPC74-emitter resistors, authentic Toshiba 2SA / 2SC transistors, matched input 2SK170 transistors, ...

Since I have promised my German DIY-friends to offer them a project for the long autumn and winter evenings, I will align Round 2
with my offer to my German friends.
Do therefore not expect this round to be closed before October.

In my ears Mihai Rauta's FC-100 defines the "TOP" of what can be made by DIYers.

Find attached the interested part list.

Best regards - Rudi_Ratlos
 

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Status
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