I do not think that someone will make this strange amplifier, but I also
believed that STC-MX also never would have been tried, but some guys
tried.
So, here I makes a part list for such strange guys ;)
Part Name | No in schematics | maker / type | amount | unit price |
power trans | T1 | Noguchi PMC500-M | 1 | Yen 20,790 |
choke | L1,L2 | Noguchi PMC-0350H | 2 | Yen 4,725 |
Bridged Diode | D7 | Shindengen S10VB60 | 1 | Yen 500 |
Rectifying Diode | D1-D4 | Origin SM-1XF20 | 4 | Yen 100 for 5 |
Electric Cap | C1,2 | JJ 2*100u/500V | 2 | Yen1500 |
Other caps | C3-C11 | many kinds ;) | 9 | -- |
Cermet Trimmer Potentiometers | VR1-VR9 | copal 2kΩ | 9 | Yen 20 |
Resistor | R1-R27 | 1/2W except for R16 | 27 | Yen 20 - 40 |
Power Tr | Tr1,4,5 | Hitachi 2SD669A | 3 | Yen 150 |
small Tr | Tr2,3,6,7 | Hitachi 2SD756A | 4 | Yen 80 |
Power Switch | SW1 | Nikkai 20A | 1 | Yen 350 |
AC plug and cable | -- | -- | 1 | Yen 100 |
Fuse | F1 | 5A | 1 | Yen 40 |
Fuse holder | -- | -- | 1 | Yen 100 |
Part Name | No in schematics | maker / type | amount | unit price |
Valve | V1 | Philips 6922 | 2 | Yen 1000 |
Valve | V2,3 | GE 6350 | 4 | Yen 900 |
Valve | V4-V7 | Svetlana EL34 | 4 matched pair | Yen 4000/@pair |
Output trans | T1 | Amplimo XC432 | 2 | Yen 11000 |
CRD | D1-D4 | Semitec Ishizuka E452 | 8 | Yen 60 |
Tr | Q1,2 | NEC 2SC3632 | 4 | Yen 60 |
Di | D5,6 | 1N4007 | 4 | Yen 20 |
Electric Cap | C14 | 100uF/500V | 2 | Yen 500 |
Electric Cap | C6 | 120uF/450V | 2 | Yen 500 |
Electric Cap | C4,C15 | 100uF/400V | 4 | Yen 200 |
Mica Cap | C3,5,16 | 39pF,100pF | 6 | Yen 150 |
PP Fils caps | C1,2,C7-C12 | many kinds ;) | 16 | Yen 50-400 |
Resistors | -- | Metal film | 74 | Yen 20-40 |
Ultra-Precision Resistor | R7,8 | 680Ω,7.5kΩ | 4 | Yen 500 |
Pin jack | PJ1 | -- | 2 | Yen 100 |
Speaker terminal | -- | -- | 4 | Yen 180 |
Chassis | -- | Noguchi S-500 | 1 | Yen 4000 |
Back lid | -- | Noguchi | 1 | Forget it! |
Etc | -- | legs, wires, etc | -- | -- |
I paid import duty and carriage except for above price.
Please check by yourself if you want to buy.
I have employed Metal thin-film Ultra-Precision resistor for feed-back resistors, but it is not required in truth ;)
I have used different capacitors or resistors for Left and Right channels in some place, as I am not care of such a thing, but I have had those resistors that I had bought in old days, so I used them, that is all.
Mica capacitor is not dipped or molded one, but cheapest wax filled type.
The price of Svetlana EL34 comes up recently.
Please notice, we can find the fake Svetlana (although it is not "fake" in law at USA) but the Svetlana is well known as very high reliability, so I think we had better buy the real one.
This fake is made in Russia, but we can see very similar marked Chinese one.
Honestly speaking, I cannot buy Chinise pentode or beam tube
Please find here for their difference and explanation (written in Germany).
6922 can be replaced by 6DJ8 of cause, and 6350 is the same as 6463.
Please be care that 6350 (or 6463) has different pinout from ordinary twin triode.
It was almost a hundred thousand yen for all.
It is quite cheap as 100W+100W tube amp, isn't it?