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Old 13th March 2010, 05:29 PM   #31
Mooly is online now Mooly  United Kingdom
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Default Finished... what was that about a red LED ?

Hmmm... I mangled the switch a bit playing around with fitting it. Pity as the red looked rather good. Should have realised that mounting it on the PCB was no good as the slightest movement would cause it to bind and stick. In the end made two brackets from PCB and drilled the front, but not deeply, to provide a good key to epoxy these in place. The switch is then soldered to this... perfect alignment that won't shift.
Listening tests again confirm how right this sounds, and as mentioned how quiet it is. Even when running on mains (charging) it's totally silent, not a trace at all of mains hum/buzz etc which is just as it should be.

So there we go... job done
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Old 14th March 2010, 04:48 AM   #32
poynton is offline poynton  United Kingdom
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Very neat and tidy !

Are you going to Simon's bash later in the year ?



Andy


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Old 14th March 2010, 07:58 AM   #33
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Thanks... it's one of those projects that just seemed to work out well.

Won't be able to make Sheffield I'm afraid.
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Old 5th May 2010, 06:04 AM   #34
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Very nice work! Good to see someone that's still into Germies these days. Any Idea on a max power output? It'd be cool to scale this up to a few watts to spank some efficient full-range drivers.
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Old 5th May 2010, 06:13 AM   #35
Mooly is online now Mooly  United Kingdom
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Hi... and thank you,
I'm not so sure it would just scale up very well tbh. Suppose it depended just how much power you wanted really, germaniums and class A don't normally go together.
A sort of hybrid using germanium and a FET (lateral) as an output might be an idea.
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Old 29th May 2010, 04:06 PM   #36
jaycee is offline jaycee  United Kingdom
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Just curious where did you get that very nice looking blue case from ?
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Old 29th May 2010, 05:26 PM   #37
Mooly is online now Mooly  United Kingdom
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Hi Jaycee,
The case is one of these,
Box Enclosures - Product

and I got it from CPC early in the year but I have a feeling they stopped doing them.
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Old 29th May 2010, 05:37 PM   #38
Mooly is online now Mooly  United Kingdom
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Farnell seem to do a few, several pages to look at,
Your Search Results | Farnell United Kingdom
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Old 29th May 2010, 07:42 PM   #39
jaycee is offline jaycee  United Kingdom
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Ahh, never thought to look at CPC for enclosures!

Rapid have the Hammond 1455's which look nice. Will probably use one of those, but i like the cool electric blue look of the case you had
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Old 30th May 2010, 07:51 AM   #40
ferynov is offline ferynov  Indonesia
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Mooly. very interesting ...but the point is how about sound impression? thx
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