Features and spec:
5Z3P tube rectifier
6n9p preamplifier
el34 power amplifier
Output Power 13Wx2
Load: 4Ohm or 8Ohm
2x Benic 0.33uf/630v input capacitors
2x 220u/63v ENLA cathode capacitor
Silkscreen stainless steel + wood enclosure
Part List
Resistors
470k*2
2k*4
270k*2
340*2
120k*1
47k*1
47k*2
5k*1
Capacitors
0.33u630v*2
220uf63v*2
22/400v*1
47/450v*1
330uf/450v*1
47uf/450v*1
Tubes
5z3p*1
6n9p*2
EL34*2
Other accessories
Tube socket*5
[FONT=宋]Power transformer 180w 290v*2 6.3v*2 5v 3.15v*2 [/FONT]
[FONT=宋]Output transformer13w3.5k*2[/FONT]
[FONT=宋]Choke coil 5H*1[/FONT]
Stainless Case*1
Rubber foot*4
RCA connector*2
Output connector*6
Power input socket *1
Power cable *1
Power switch *1
Potentiometer 100K*1
Knob *1
Shielded cable 35cm
Cannula 15cm
[FONT=宋]Wiring cable 3m[/FONT]
M3 and M4 screws
Photos
5Z3P tube rectifier
6n9p preamplifier
el34 power amplifier
Output Power 13Wx2
Load: 4Ohm or 8Ohm
2x Benic 0.33uf/630v input capacitors
2x 220u/63v ENLA cathode capacitor
Silkscreen stainless steel + wood enclosure
Part List
Resistors
470k*2
2k*4
270k*2
340*2
120k*1
47k*1
47k*2
5k*1
Capacitors
0.33u630v*2
220uf63v*2
22/400v*1
47/450v*1
330uf/450v*1
47uf/450v*1
Tubes
5z3p*1
6n9p*2
EL34*2
Other accessories
Tube socket*5
[FONT=宋]Power transformer 180w 290v*2 6.3v*2 5v 3.15v*2 [/FONT]
[FONT=宋]Output transformer13w3.5k*2[/FONT]
[FONT=宋]Choke coil 5H*1[/FONT]
Stainless Case*1
Rubber foot*4
RCA connector*2
Output connector*6
Power input socket *1
Power cable *1
Power switch *1
Potentiometer 100K*1
Knob *1
Shielded cable 35cm
Cannula 15cm
[FONT=宋]Wiring cable 3m[/FONT]
M3 and M4 screws
Photos
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Also the 6n9p can be substituted with KT88.
And KT88 is also eequivalent to EL34 if i remember correcty. Would be a sonic improvement or just a mere change of behaviour?
I've got one of these in the uk. The transformer is 2 x 110v. We're 240v so I've altered the cathode bypass resistance from 300 ohm to 270 to get the EL34 idle at 70% of max power.
Also the input 6n9p double triode is wired in an interesting manner, and quite different from the schematic supplied. Both parts of the valve, triode 1 and triode 2 are wired in parallel. The grid bias actually comes from the 100k resistor which is across both grids and ground on the amp side, and has the CD input on the other.
Also the input 6n9p double triode is wired in an interesting manner, and quite different from the schematic supplied. Both parts of the valve, triode 1 and triode 2 are wired in parallel. The grid bias actually comes from the 100k resistor which is across both grids and ground on the amp side, and has the CD input on the other.
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