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Phono amp kits

the thin end of the wedge

Re: Phono amp kits

Postby avinunca1 » 22 Jan 2012 19:45

abril wrote:Anyone know the whereabouts of Alan Jackson :?: :?:
Who he's supplier of PCB's was :?:

A real shame to lose this - if only someone could commission 20 to 50 PCB's.


Good news. I have made contact with the kit supplier. Looks like I will be able to buy a kit after all. Not sure as yet if a higher spec set of components is available. Any suggestions where I can improve the end result by using better caps etc
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Re: Phono amp kits

Postby abril » 22 Jan 2012 21:44

Good news. I have made contact with the kit supplier.


Who----where :?: :?: :?: :?:

No idea even what APJ's standard parts were like as mine was built from a Farnell order ,including Panasonic FC and FM electrolytics and close tolerance polystyrene caps where needed with some minor adjustments to make it
A/possible to adjust MM load capacitance
B/MC load resistance and delete MC input capacitance
without unnecessary switching
then put into a Hammond ally case from Rapid.

PS
you seem determined to build this =D>
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Re: Phono amp kits

Postby avinunca1 » 25 Jan 2012 00:05

avinunca1 wrote:
jostber wrote:I use the Hagtech Cornet which is a great tube phono amp:

http://www.hagtech.com/cornet2.html



I was wondering what the total cost was for one of these. Looks like your 100+ dollars just gets you the pcb and instructions. Not sure about the component cost.
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Re: Phono amp kits

Postby electrokid » 25 Jan 2012 23:46

mine is based on the RCA circuit published in their tube manual


RCA consistently produced excellent designs for their application notes. There are some interesting ideas in the book "Valve Amplifiers" by Morgan Jones some of which I intend to try when the second deck gets worked on later this year.
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Re: Phono amp kits

Postby smee4 » 26 Jan 2012 00:56

electrokid wrote:
mine is based on the RCA circuit published in their tube manual


RCA consistently produced excellent designs for their application notes. There are some interesting ideas in the book "Valve Amplifiers" by Morgan Jones some of which I intend to try when the second deck gets worked on later this year.


Yes they did. This one uses a passive RIAA network, that people seem to prefer - ahead of it's time it seems.
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Re: Phono amp kits

Postby VinylBliss » 26 Jan 2012 03:04

Hello all,

I have been very happy with the phono preamp kit I purchased here: http://www.tubes4hifi.com/new12.htm
I'm using their PH14 model phono preamp with their SP9 line amp, and I am very happy with the sound. The cartridge I am using is the Benz Micro Glider SM.
I am using Lundahl 1544's to step the output of the cart up to 1.8mv ahead of the PH14. Working very well, noise is negligible, sound is open and dynamic.
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Re: Phono amp kits

Postby hags » 26 Jan 2012 04:41

Cyreg wrote:GrahamSlee has one > the genera > very good reviews from users

http://www.diy-audio-kits.com/kits/gene ... roject.htm



Is that a single, dual 8 pin IC for both channels??? A solid state design with a capacitor coupled output?
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Re: Phono amp kits

Postby avinunca1 » 27 Jan 2012 22:34

VinylBliss wrote:Hello all,

I have been very happy with the phono preamp kit I purchased here: http://www.tubes4hifi.com/new12.htm
I'm using their PH14 model phono preamp with their SP9 line amp, and I am very happy with the sound. The cartridge I am using is the Benz Micro Glider SM.
I am using Lundahl 1544's to step the output of the cart up to 1.8mv ahead of the PH14. Working very well, noise is negligible, sound is open and dynamic.



Look like good value products.Can't see any details on PH14 so have emailed company.
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Re: Phono amp kits

Postby abril » 16 Feb 2012 08:30

avinunca1
PM for you :D
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Re: Phono amp kits

Postby aardvarkash10 » 16 Feb 2012 09:51

hagtech

Options in glass and sand to suit your dietary requirements and predilections.

Well respected designs that perform and can be tweaked.
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Re: Phono amp kits

Postby michaelw » 16 Feb 2012 20:49

Take a look of GlassWare Audio Design at
www.glass-ware.com

I like it very much.
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Re: Phono amp kits

Postby avinunca1 » 16 Feb 2012 22:21

aardvarkash10 wrote:hagtech

Options in glass and sand to suit your dietary requirements and predilections.

Well respected designs that perform and can be tweaked.


I see these kits receive good press but I reckon tubes4hifi may offer just as much but at lower cost. It would be interesting to hear from anyone who has made comparisons.
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Re: Phono amp kits

Postby avinunca1 » 16 Feb 2012 22:23

michaelw wrote:Take a look of GlassWare Audio Design at
http://www.glass-ware.com

I like it very much.


Very interesting site - thanks
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Re: Phono amp kits

Postby Rothwellaudio » 17 Feb 2012 12:11

One of the things that make valves so attractive to DIYers is that you don't need a kit, you can just buy components from wherever you choose and hardwire them onto tagstrip. At a later date you can modify or upgrade much easier than would be possible with a PCB. And if you aren't comfortable with with designing circuits from scratch, there are lots of tried and tested designs available on the web at no cost.
It seems a shame to lose all that freedom by buying a kit.
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