I always trusted in the combo TT & valve pre, is the way I start my love to music 30 years ago.
I'm tempting to refurbish my mono blocks Jadis JA-80, could you help me? I will post in the valves forum.
Now I'm ready to finish my 26# preamp
Attached Valve Itch pic
I'm tempting to refurbish my mono blocks Jadis JA-80, could you help me? I will post in the valves forum.
Now I'm ready to finish my 26# preamp
Attached Valve Itch pic
Attachments
I followed Fran's grounding, star ground, ground wire coming from PSU not direct to star ground: between them I use the ground loop breaker. I learned doing other valve phono preamps it's very important twisted wires & for heater & B+ wires don't cross or be near between them, heater wires also must be always near chassis so chassis acts like a shield avoiding noise in the heaters. Heaters regs I used PRP resistors, BG NP & Panasonic FM. Only boutique parts are used in the phono:
Resistor 22K B+ between 6SN7 & 6N2P-EV (Mills+Shinkoh)
Load cartridge resistor 47K (Audionote tantalum)
Resistor R3 47R Takman carbon
Rest of resistor are common cheap carbon
Heater elevator cap 1uf 450V Auricap
Output caps 3.3uF 450V Auricap
Step-up resistor Shinkoh
Ground loop breaker used
Attached pic, enjoy.
Resistor 22K B+ between 6SN7 & 6N2P-EV (Mills+Shinkoh)
Load cartridge resistor 47K (Audionote tantalum)
Resistor R3 47R Takman carbon
Rest of resistor are common cheap carbon
Heater elevator cap 1uf 450V Auricap
Output caps 3.3uF 450V Auricap
Step-up resistor Shinkoh
Ground loop breaker used
An externally hosted image should be here but it was not working when we last tested it.
Attached pic, enjoy.
Attachments
Arrh !
You make 26 as well Felipe !
I looked at this also...
...good with attenuator between Itch & 26 maybe.
Felipe...You told me a year ago...but I forget...
...You are using 'balanced amps'...yes ?
..I think you built yourself Nelson something ( F? ).
What line-stage do you use/build ?
This is what you listen to 'Itch' with now...before amps/s ?
Si.
Hope that makes sense.
( nice grommets !!! )
You make 26 as well Felipe !
I looked at this also...
...good with attenuator between Itch & 26 maybe.
Felipe...You told me a year ago...but I forget...
...You are using 'balanced amps'...yes ?
..I think you built yourself Nelson something ( F? ).
What line-stage do you use/build ?
This is what you listen to 'Itch' with now...before amps/s ?
Si.
Hope that makes sense.
( nice grommets !!! )
Only to chassis, inside the chassis I have sanded the painting in order that it was doing good contact.
Nice... so TT GND is connected only to preamp chassis and NOT to circuit gnd.
The chassis itself connects to the circuit MINUS only throu the GND loop breaker circuit....
Is the orange/red/brown/black you use from reg to phono good for HV, or is it some general purpose signal cable?
I need to change for other more thick?
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