An Exercise in Daftness.

A place for DIY project discussions.
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wiicrackpot
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Re: An Exercise in Daftness.

Unread post by wiicrackpot »

Ooops...i've done it again Steve, wink..wink.. :mrgreen:,

Seriously nice looking amp,i likey a lot, are you gonna leave the transformer uncovered?,
not that it's ugly but would be nicer to enclose in a chrome cover to reflect the valve glow,
my opinion of course. :grin:
Frank...made me do it.

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Dr Bunsen Honeydew
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Re: An Exercise in Daftness.

Unread post by Dr Bunsen Honeydew »

Its going to have decorated cake tin over it :mrgreen:

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SteveTheShadow
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Re: An Exercise in Daftness.

Unread post by SteveTheShadow »

Finished it this afternoon.
Image

I threw caution to the wind and just connected it up, let the heaters warm through for five minutes then threw the HT switch with a long stick.

It lives! It plays! There is no hum! Wahay! :mrgreen:
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setting son
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Re: An Exercise in Daftness.

Unread post by setting son »

Nice. Well done, sir.

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wiicrackpot
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Re: An Exercise in Daftness.

Unread post by wiicrackpot »

The talent on show is fantastic, whats the thought on the Doc's cake tin lid?,
will it melt if you played ''MacArthur's Park'' i wonder?. :lol:
Frank...made me do it.

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Re: An Exercise in Daftness.

Unread post by Firebug1 »

Is bigger always better? :mrgreen:
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Re: An Exercise in Daftness.

Unread post by Lindsayt »

Any photos of the inside, now that it's in a working state?

And how does it sound compared to your existing amplification?

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SteveTheShadow
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Re: An Exercise in Daftness.

Unread post by SteveTheShadow »

Cheers chaps,
I'll put some pics up of the inside later on. It's not going to be a pic of neat wiring looms as I gave up on that years ago. All you get with tied in looms is increased stray capacitance, which can cause weird phenomena, ranging from poor HF response to RF pickup.
It's simply point to point with a couple of nice PCBs for the driver stages, designed by my forum colleague Ray, on Audio-Talk. The small signal tubes are DC heated from a DIYHiFiSupply module.
I'll talk about the sound later on.
Last edited by SteveTheShadow on Sat Mar 23, 2019 10:35 am, edited 1 time in total.
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Latteman
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Re: An Exercise in Daftness.

Unread post by Latteman »

SteveTheShadow wrote: Fri Mar 22, 2019 11:37 pm Finished then threw the HT switch with a long stick.
😂 done that before 👍🏼
Analogue Source -
Denon DP47f- Ortofon mc20 supreme
Ifi Zen Phono
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- IfI stream, Ifi Neo idsd Dac; Tidal / Radio Paradise
Amplification Nva 30vdc mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources

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SteveTheShadow
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Re: An Exercise in Daftness.

Unread post by SteveTheShadow »

Latteman wrote: Sat Mar 23, 2019 10:32 am
SteveTheShadow wrote: Fri Mar 22, 2019 11:37 pm Finished then threw the HT switch with a long stick.
😂 done that before 👍🏼
Oh yes!
I was taught years ago that on first switch on, in the absence of a variac, the first assumption you make is that the amplifier will explode. :lol:

The insides:
Image
Not a pretty sight, but there is no hum or noise.
Somebody’s telling me the latest scandals.
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)

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