[time-nuts] DMTD questions

[Robert Darby]

Thanks Götz, I'll run down those suggestions.

bob

On 5/28/2013 12:46 PM, Götz Romahn wrote:
> hi Bob,
> I had the same problems which I solved (partly) the following way:
>
> transformer tc1-1t is offered here: http://www.minikits.com.au/TC1-1T
> for mixers I took TUF-1 which is rather similar to TUF-R3SM and got it 
> here (you have to bend pins properly):
> http://www.box73.de/product_info.php?products_id=419
> input transformers I got via ebay (160660972892). They are 75 Ohms 
> instead of 50 Ohms, yes one has to compromise
> power splitter also via ebay (251254674273). The are a little large 
> but by you can fit it in.
>
> I know there are some compromises but better than nothing. I am very 
> satisfied with my DMTD. Nearly as good as W.J.Riley's.
> An additional note for the DDS module: there are some glitches in the 
> layout so beware and check all connections. Resistors and most 
> capacitors are package 0604 other than on mixer module. LM6609 are 
> different package also.
> hope this helps Goetz
>
> Am 27.05.2013 22:27, :
>> Some time back I purchased from Stanley Reynolds the necessary boards 
>> for the Riley DMTD.  I'm now looking at what's necessary to build out 
>> these boards and the Mini Circuits parts are far and away the most 
>> expensive parts, due principally to the 10 part minimum on several of 
>> the items.
>>
>> I'm wondering if there are any others on the list who are 
>> contemplating the Riley DMTD and might wish to split a Mini Circuits 
>> parts order to ease the pain?
>>
>> I guess I should also ask if an alternate DMTD in the works and if 
>> so, where does it stand at this time?
>>
>> Thanks,
>> Bob Darby
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