SOLD Valve phono amplifier

SOLD

avinunca1

Wammer
Wammer
May 26, 2008
1,335
139
93
Shrewsbury, UK
AKA
Michael
HiFi Trade?
  1. No
I am selling my self-built kit phono amplifier - a tubes4hifi PH15. I have been using this for some years. I remember comparing it to a Graham Slee Reflex M I had on loan at the time. Although the GS was very good I preferred my kit amp - particularly it's handling of vocals. They sounded more real to me.
The amplifier has biasing from a couple of pp3 batteries. They last a very long time.
There is information on the web about this phono amp. I also built the supplier's SP14 Akido preamp which is also very impressive.
I will be replacing the PH15 with a Paradise DIY phono amp once Si has finished his expert touches which means I will also be selling the Hashimoto HM-3 SUTs currently in use to provide a MM level input to the PH15.
I would like £290 £265 for the PH15.
I will list the Hashimoto SUTs separately.
I will be at the Wam show this Sunday and can take the item/s. Alternatively I can post and will need to check postage.


5C0B3346-A4D1-452B-898A-288AEBC9409A_1_105_c.jpeg
 

Attachments

  • 81321F94-4C88-48C7-BD0C-B49D501FCB80.JPG
    81321F94-4C88-48C7-BD0C-B49D501FCB80.JPG
    640.5 KB · Views: 54
Last edited:
  • Like
Reactions: Phil48 and JamieMcC

avinunca1

Wammer
Wammer
May 26, 2008
1,335
139
93
Shrewsbury, UK
AKA
Michael
HiFi Trade?
  1. No
A few words found on the web -
The PH15 circuit features a JFET/triode cascode front end for low noise, and high gain (45 or 55db) . The RIAA equalization is split and uses no negative feedback, and is accurate within .1db from 10 to 40KHz. The first two stages use 6922/6DJ8 tubes, followed by a 12AU7 buffer stage. All signal capacitors are Sonicap, all signal resistors are Takman or PRP. Power supplies are regulated, B+ is tube rectified. The chassis is well damped with vinyl and asphalt based damping sheet. This is a great sounding, very quiet, revealing phono stage, it was VTA's top-of-the line, until it was superseded by the PH16.

I have cct diagrams. Note that higher output mc cartridges can be connected.
 
Last edited:

Non-Smoking Man

Wammer
Wammer
Mar 31, 2009
6,482
2,522
158
Chichester W. Sussx.
AKA
Jack lambert
HiFi Trade?
  1. No
I rather like the look of this.
Some people see 'DIY' and run a mile - not me, I'm valves and horns and they dont always come off the shelf or out of a shop.

GLWS

Jack NSM
 
  • Like
Reactions: JamieMcC

Forum statistics

Threads
113,444
Messages
2,451,263
Members
70,783
Latest member
reg66

Latest Articles

Wammers Online

No members online now.