 |
| ref. typology |
 |
| select signal tube 6922 vs 12Ax7 |
6922 Left channel
12Ax7 Right channel
 |
take off PL519 40V heater transformer
|
 |
for 6DJ8 6.3V heater
|
 |
| make sure the -Voltage for gride bias |
 |
| add 1st 6922 tube sockect |
 |
| DAC feed in 1K wave then transfer to analog 1Khz waveform |
 |
| 1st stage 6922 gain tuning to balance p-pV |
 |
| 2nd stage 6922 gain p-pV w offset |
 |
| the resistor of low noise preamplifier |
 |
| benchmark we437a vs EH 6c45-pi |
 |
benchmark Japan 1970 low noise tube
|
 |
modify PL519 amplifier...switch to VT-4C amplifier
|
走過咖啡店早年歲月
咖啡店從無到有... 從有到無... 歲月的流逝 ,剩下的祇有記憶.
從無到有--- 舊店設立.
從有到無--- 拔營....牧咖啡的咖啡人.....移址, 啡客...........的遷徙.
咖啡店=咖啡+音樂
咖啡=日式咖啡+美式咖啡
日式咖啡=日式單品+日式花式咖啡
美式咖啡=美式單品+美式花式咖啡
.........."請不要找茶".
音樂=古典音樂+真空管
