SOLD NO LONGER FOR SALE please remove

[Lokes]

25 watt Class A amplifier, very clean inside.
comes with a set of Spare output devices

There is a little hum if you push your head close to the speaker but ok from a few feet away.

£575

Collection from.Pontypridd please

 

[It Cost How Much!?!]

Bargain, I have one and they punch well above their cost.

 

[Lokes]

Bargain, I have one and they punch well above their cost.

I know Colin designed many amplifiers, including single ended class A amplifiers. Mine seems to be push pull. I've seen pictures of ID25 that are PP and SE online, do you nnow if yours is SE or PP ?

 

[It Cost How Much!?!]

I know Colin designed many amplifiers, including single ended class A amplifiers. Mine seems to be push pull. I've seen pictures of ID25 that are PP and SE online, do you nnow if yours is SE or PP ?

I am not sure and I am on hols in Cyprus.

 

[quickie]

I know Colin designed many amplifiers, including single ended class A amplifiers. Mine seems to be push pull. I've seen pictures of ID25 that are PP and SE online, do you nnow if yours is SE or PP ?

The three ID amps I have owned were PP, with either the little Dirk Boards like yours, or ones marked ID25 a/b.

This might be a 50 though.

 

[Lokes]

The three ID amps I have owned were PP, with either the little Dirk Boards like yours, or ones marked ID25 a/b.

This might be a 50 though.

Thanks,
Trying to find pics of an ID50 is trickier than getting a straightforward answer from a cabinet minister ,
I'll take the lid off and see if I can find any reference

 

[mikeyb]

Why not ask Colin Wonfor, he'll tell you all about it. Can be found/contacted on various forums as CJ14 or on AudioChews as AntiCrap

http://www.audiochews.com/discussion/1971/inca-designs-id25-wonfor-class-a-power-amp

 

[mikeyb]

Here's a couple I found of the ID50









ID75 top then ID25 below



Hope this helps

 

[quickie]

Here's a couple I found of the ID50









ID75 top then ID25 below



Hope this helps

These pics are the three amps I've owned (still got the bottom one)

I think the op's amp might be a 50, but Colin is the man to ask

 

[Lokes]

Here's a couple I found of the ID50









ID75 top then ID25 below



Hope this helps

Thanks,
the pics of the ID50 only have 2 output devices so I guess it rules that out ,

I'll get the lid off and have another look

 

[Lokes]

The three ID amps I have owned were PP, with either the little Dirk Boards like yours, or ones marked ID25 a/b.

This might be a 50 though.

Thanks,

These pics are the three amps I've owned (still got the bottom one)

I think the op's amp might be a 50, but Colin is the man to ask

Thanks,
I'll message him

 

[Colin Wonfor]

There was two versions of the ID25, Paul Miller and I decided after a show in London about 30yrs ago when he was demonstrating class of amps using the Dirk PCB's as it was possible to be able set it to A, A/B or just B the version set in A was more dynamic. But we tried it on the ID50 and ID75 and single ended was far superior .
Now a few week ago I had one ID25 (Dirk) here to upgrade by my musician friend Saul. I upgraded the FET,s from 8Amp at 1.8R devices to 28Amp and 10mR RDsOn type and replaced all the small caps and the input cap to polycarb.
The beast gave 75W RMS into 8R and 150W into 4R both channels, and a single channel into 2R was 300W, the BW was 1Hz - 250KHz flat at full power into 8R.
I also use these FET,s on the Claymore upgrades, OK they are not cheap but by heck they are worth it.
OH I also took the Mica insulator out and replaced them with some nice ceramic time sent to me by my buddy Quickie, thanks Paul much better than the ticker one I have.

 

[Colin Wonfor]

Oh forgot replaced the standard Copper wire with Silver wire and fitted a IEC power connection so Saul can use the EWA mains cable, the bass control must be heard a monster.

 

[Lokes]

There was two versions of the ID25, Paul Miller and I decided after a show in London about 30yrs ago when he was demonstrating class of amps using the Dirk PCB's as it was possible to be able set it to A, A/B or just B the version set in A was more dynamic. But we tried it on the ID50 and ID75 and single ended was far superior .
Now a few week ago I had one ID25 (Dirk) here to upgrade by my musician friend Saul. I upgraded the FET,s from 8Amp at 1.8R devices to 28Amp and 10mR RDsOn type and replaced all the small caps and the input cap to polycarb.
The beast gave 75W RMS into 8R and 150W into 4R both channels, and a single channel into 2R was 300W, the BW was 1Hz - 250KHz flat at full power into 8R.
I also use these FET,s on the Claymore upgrades, OK they are not cheap but by heck they are worth it.
OH I also took the Mica insulator out and replaced them with some nice ceramic time sent to me by my buddy Quickie, thanks Paul much better than the ticker one I have.

Hi Colin,
thanks for the info,
I would normally jump at the chance to get the amp upgraded but my Tinnitus means that my listening requirements have changed and I no longer listen frequently , a few hours a week if I'm lucky, and never above 70dba.
I've spent the last 30 plus years acquiring kit that I no longer use.
It's a bad time to sell anything but
it's a lot of amp for little money

All the best

 

[hiesteem]

I am not sure and I am on hols in Cyprus.

How is the weather?

 

[It Cost How Much!?!]

It was 22 to 27c, I have a nice tan. cheers. Ayia Napa was great.

 

[Lokes]

Bump

Now £550

 

[Lokes]

On Hold,

Recently bought some Castle Harlech S2 and have found them not to my taste, a bit forward, even with a nice valve amp, I prefer my Severn mk II,
maybe gone a bit pipe & slippers with age ?
Anyway,
Paired this amp with a Croft pre and it seems to be driving the bass end harder and now they seem more evenly balanced.

So this ad is on hold for now