A group-build project for a tube power amp in India

[renjiish]

It's an old English brand, R.F.GILSON Ltd. Wimbledon

 

[renjiish]

Tube preamp

My first tube preamp. Made from recycled components.

 

[phildas]

Pretty Neat!
Mind sharing the schematic/circuit diagram? Listening impressions?

 

[renjiish]

I quite like the sound quality. Comparing with Bride of Zen it have bit more low end and high frequency seems to be more finer.

It is a very simple circuit(don't think it is an audiophile circuit)

The circuit is attached.

 

[phildas]

I'm new to DIY! Nice inspiration.. What is the power circuit here? Which rectifier tube?

Thanks!

 

[rajesh]

My first tube preamp. Made from recycled components.

Looks lovely. Hope it sounds good as well. Hope I can audition it. Where are you located?

 

[renjiish]

To Rajesh

Basically I am from Thrissur ,Kerala. Currently I live in Newbury, UK. It is a sweet sounding preamp.

Hi Phildas

I used EZ80 as a rectifier. This amp is dead quite.

 

[phildas]

Cool! I'm in Kottayam at present! What do u mean by dead? Is it working?

🙂

 

[phildas]

Power circuit? Did you draw a wiring diagram of this?

 

[renjiish]

sorry mate a spelling mistake. dead quiet, I mean very silent(no hum).

 

[phildas]

Neat! You still haven't shared with us the power circuit! And a wiring diagram. That will be of great help to newbies like myself. Thanks!

 

[renjiish]

power supply attached

 

[phildas]

many thanks!!

 

[renjiish]

First prototype of 2 watts power amplifier using EL95 and EF86

 

[rajesh]

Just wanted to give a heads-up on Miracle transformers.

Miracle Electronics, here in Bangalore, is prompt and responsive for one off orders.

Miracle is super expensive. There are a lot of better alternatives.

First prototype of 2 watts power amplifier using EL95 and EF86

Looks ethereal.

 

[bullpeters]

What a great thread. I would think that building a valve amplifier would be much more economically viable in India then in the US, Europe, or Australia. I buy what I can from China cause its cheap and close.I would think India would be both and then more. Surely you can get great quality transformers, chassis etc given the purchase power and the tech knowledge on the Sub continent. My next "business"destination

 

[appsec]

Trying to revive this thread again in 2015! 🙂

Any one from Bangalore? Who could assemble one for me? I can pay the price + whatever extra required to get the stuff done...

Also, if parts are available at Bangalore, I could get them for the assembly. Thank you.

-
Suri

 

[Alastair E]

I'm pretty sure there's still a valve manufacturer still going in India somewhere, I read about it a while back, but for life of me cant remember much more....

 

[prasad1964]

EL84 output transfomer

Tried contacting DELTA Transformers. Response as usual, send a email with details, and no response. Finally after following up got a sky rocketing offer.

 

[tcpip]

What is a sky rocketing offer?