[Amps] Building a Mock Up

[Ian White GM3SEK]

>>
>> How many of you amp builders make a mock up of the chassis and layout in
>> "cardboard" before you start cutting, bending and drilling metal?
>>
>> Lee - K0WA

>We always do a cad drawing and or place the parts without fastening 
>before
>starting any significant project
>Paul K0UYA

Another use for a cardboard box prototype is to check the air flow 
through the blower and tube/socket. This can save a lot of grief later 
on!

A simple method of measuring volume flow is to time how long it takes to 
inflate a thin plastic garbage bag placed over the exhaust port. (For 
details, search the archives of this group for "garbage bag".)



-- 

73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek