Remember These?
- IslandPink
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#751 Re: Remember These?
Looked like an ideal base for some fibreglass and a bit of filler !
"Once you find out ... the Circumstances ; then you can go out"
- pre65
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#752 Re: Remember These?
Or even papier mache ?IslandPink wrote: ↑Thu Nov 14, 2019 10:19 pm Looked like an ideal base for some fibreglass and a bit of filler !
Bits of old newspaper with flour and water.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
#753 Re: Remember These?
I actually spat my tea then ... ROFLCressy Snr wrote: ↑Thu Nov 14, 2019 7:29 pm Nah it looks fecking horrible.
I took it off. It looked like a pair of chokes with a chip basket over them.
It’s now been cut down in height, and turned through 90 deg.
Much better.
- jack
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#754 Re: Remember These?
You can make very smart boxes out of unused fr4 (solder the edges together on the inside)... Solder your nuts into the corners (queue DtB) and round off the edges... Spray black and Robert's your father's brother...
Or spray it a nice fleshy pink like the chip basket...
Or spray it a nice fleshy pink like the chip basket...
Last edited by jack on Fri Nov 15, 2019 10:15 am, edited 1 time in total.
Vivitur ingenio, caetera mortis erunt
- izzy wizzy
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#755 Re: Remember These?
Pressed into tupperware or similar as a mould, could be very smooth.
#756 Re: Remember These?
I've toyed with using papier mache for speaker cabinets before. There are some proprietary mixes around with plaster filler that are meant to be excellent for a finish and hard too.
Sorry, I couldn't resist!
- Dave the bass
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#757 Re: Remember These?
Sniggers!
Reporting for action Sir *does daft salute*
"The fat bourgeois and his doppelganger"
- Cressy Snr
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#758 Re: Remember These?
I’ve abandoned covers altogether. I took the tatty old labels off the chokes and they actually don’t look bad at all.
Sgt. Baker started talkin’ with a Bullhorn in his hand.
- IslandPink
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#759 Re: Remember These?
Steampunk ! - just apply some patina .
"Once you find out ... the Circumstances ; then you can go out"
- Cressy Snr
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#760 Re: Remember These?
I keep thinking about doing Steampunk amps. One of these days I’m going to go to town with it. Valves and Steampunk are obvious bedfellows.
Sgt. Baker started talkin’ with a Bullhorn in his hand.
- Mike H
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#761 Re: Remember These?
Cressy Snr wrote: ↑Thu Nov 14, 2019 7:29 pm Nah it looks fecking horrible.
I took it off. It looked like a pair of chokes with a chip basket over them.
"No matter how fast light travels it finds that the darkness has always got there first, and is waiting for it."
- IslandPink
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#762 Re: Remember These?
Have a look through here, the finish on some of these lovely things has got me thinking about it !Cressy Snr wrote: ↑Fri Nov 15, 2019 10:32 pm I keep thinking about doing Steampunk amps. One of these days I’m going to go to town with it. Valves and Steampunk are obvious bedfellows.
http://myemia.com/_FC.html
( ps. the symbols on the left are page links )
"Once you find out ... the Circumstances ; then you can go out"
- Cressy Snr
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#763 Re: Remember These?
Fabulous!IslandPink wrote: ↑Sat Nov 16, 2019 5:56 pmHave a look through here, the finish on some of these lovely things has got me thinking about it !Cressy Snr wrote: ↑Fri Nov 15, 2019 10:32 pm I keep thinking about doing Steampunk amps. One of these days I’m going to go to town with it. Valves and Steampunk are obvious bedfellows.
http://myemia.com/_FC.html
( ps. the symbols on the left are page links )
I’ll start a new thread.
Sgt. Baker started talkin’ with a Bullhorn in his hand.
- Mike H
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#764 Re: Remember These?
there are different genres apparently
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"No matter how fast light travels it finds that the darkness has always got there first, and is waiting for it."
- Cressy Snr
- Amstrad Tower of Power
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#765 Re: Remember These?
OK,
Here are the schematics for the audio circuit and the power supplies.
The power supplies are old school, no regulation as there is a limit to what can be squoze onto a stereo chassis of a reasonable size. Besides, I don’t have enough HT for that sort of stuff.
There is no doubt room for improvement: for example, the driver stage bias voltage could be tweaked by a couple volts to get it dead centre, for absolute max clean swing, but it’s not far out, so it’ll do for now. Remember also that this is built out of donated PCBs, one of a pair of Sowter chokes that Mr I gave me a very good deal on, and whatever else I had to hand. Consequently, some parts in the power supplies are OK, whilst others are stupidly over-specced, but you work with what you’ve got when you’re on a budget.
I’ve also after the fact, seen this on DIYAudio...“NEVER put an interstage transformer or plate choke inside a global feedback loop” but there don’t seem to be any problems with my plate choke setup, probably because there is no output transformer sticking its oar in. Apart from the potential to tweak the driver bias, the audio circuit performs quite nicely.
The feedback level has been doubled to drop the gain and further clean the window into the performance. Both the doubling of the feedback and the triple power supply came about after visiting and talking with Steve a few weeks ago.
For sound per pound, this is a good value amp.
Here are the schematics for the audio circuit and the power supplies.
The power supplies are old school, no regulation as there is a limit to what can be squoze onto a stereo chassis of a reasonable size. Besides, I don’t have enough HT for that sort of stuff.
There is no doubt room for improvement: for example, the driver stage bias voltage could be tweaked by a couple volts to get it dead centre, for absolute max clean swing, but it’s not far out, so it’ll do for now. Remember also that this is built out of donated PCBs, one of a pair of Sowter chokes that Mr I gave me a very good deal on, and whatever else I had to hand. Consequently, some parts in the power supplies are OK, whilst others are stupidly over-specced, but you work with what you’ve got when you’re on a budget.
I’ve also after the fact, seen this on DIYAudio...“NEVER put an interstage transformer or plate choke inside a global feedback loop” but there don’t seem to be any problems with my plate choke setup, probably because there is no output transformer sticking its oar in. Apart from the potential to tweak the driver bias, the audio circuit performs quite nicely.
The feedback level has been doubled to drop the gain and further clean the window into the performance. Both the doubling of the feedback and the triple power supply came about after visiting and talking with Steve a few weeks ago.
For sound per pound, this is a good value amp.
Last edited by Cressy Snr on Wed Nov 20, 2019 2:57 pm, edited 5 times in total.
Sgt. Baker started talkin’ with a Bullhorn in his hand.