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Doepfer

Index last updated: 2026-04-29 00:15 UTC

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Re: [Doepfer_a100] Re: shortwave radio module

2004-10-19 by timothy adams

Bravo For the lederhosen! The ramsey radio is a direct conversion device and the tuning
is voltage controlled by biasing a generic (1n4001) diode 0 to 9 volts, the tuning range
isnt that extensive but will work well, you will need an external antenna (about 50 ft)
and is cost effective. Stick a vatrol to control the volume and you have a good start.

Tim



--- synthtrader <synthtrader@yahoo.com> wrote:

> 
> hi,
> 
> Thanks for the feedback! Some of my comments...
> 
> << Great idea! But how about having voltage control over the tuner? 
> >>
> 
> I agree! Its necessary. I suggested it also.
> 
> << I don't this is too esoteric... :-) >>
> 
> Good. If Dieter thinks it is then perhaps we could still convince 
> him with enough preorders.
> 
> << Why not also have a reel to reel tape player with voltage 
> controlled speed?? >>
> 
> Hmm, kinda like a modern Space Echo with longer Sound on Sound times 
> and expanded CV (instead of just for clocking the delay). This would 
> be lovely of course, but perhaps too big and too expensive. One 
> problem is that the read/write devices are hard to source used/NOS, 
> and almost impossible to find new. As far as space concerns a 
> microcassette version would work well in the A-100 format, and be 
> kind of lo-fi, but it requires 3 heads (IIRC, read, write, erase) 
> and microcassettes only have two! So perhaps it could be done, and 
> surely Dieter could find a way, but it'd have to be custom built and 
> therefore the module would be more money cause of assembly. The 
> alternative is using NOS/used parts and a big external case. And it 
> couldn't be done any cheaper than a Space Echo so that kills a big 
> portion of the market...lots of people would just buy a Space Echo 
> (without the expanded VC of course, it does have some).
> 
> Now an alternative, which admittedly isn't as cool, is for Doepfer 
> to release the BBD-based analog delay with CV as discussed earlier 
> PLUS an analogue pitch shifter (no digital because of lag 
> times)...with CV of course. This would do pretty much the same thing 
> but of course the timbre (sound) would be of a different character. 
> BBD delay times are also dependent on the number of stages and that 
> influences the purity or cleanliness of the final outputted signal. 
> That is why most BBDs are lo-fi...its usually a compromise between 
> longer delay times and signal to noise ratio.
> 
> << For that matter what about a whole line of space-age-bachelor-pad-
> hi-fi modules? >>
> 
> Like this one: 
> http://yamazaki-maso.net/news/101.jpg
> 
> !!!
> 
> << How about a voltage controlled line of lingerie? >>
> 
> hahaha. sure. and while we're at it, DOEPFER presents VC LEDERHOSEN!!
> 
> 
> 
> 



		
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