Re: [OTish] Free Electronics books

["andy_powell_is" <ukha@xxxxxxx>]

Frank,

just out of interest I costed up the creating of this and worked it 
out at about 14 gbp... that excludes a psu but most people have them 
anyway, and if not they're only about 10 quid... so /including/ the 
purchase of the psu, the total /saving/ is going to be 53 gbp.. 

ie

Xantech Model 791-44 10 Way Infra-Red Block/Amplifier 77 gbp 

Diy jobbie 24 gbp

amazing, not only that but I can make it a 20 way with the addition 
of a few coponents costing pennies! How do they justify that price.. 
I really don't know... 

Andy


--- In ukha_d@y..., "Frank Mc Alinden" <armagh@b...>
wrote:
> Hi Andy
>                
I Have  4 ir leds wired in series (2 0ff),and then 
the 2
> groups are wired in parallel .
>         When i built the proto
unit i installed  a removal link so 
i could
> put my multimeter in series to measure the ir current being 
transmitted.
> 
> Frank Mc




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