F5 heat sink, rhetorical question,

[john s]

I'm moving to Mexico in about 4 months and have all the components and boards from the shop for Nelsons F5

i recently took apart a Cambridge 5.1 surround sound receiver and have the

have a heat sink with fan attached, small neat and compact,

this was cooling six B817 E4E1's six, D1047 E 4F1 and six D946BR, although i haven't a clue what they are but hope someone can identify them from the numbers,

Question would the 4 fets in an F5 generate more heat than this lot, ?

thanks for any thoughts or input,

John S

 

[Zen Mod]

pics please

 

[john s]

Hi Zen,

Thanks i've taken some with my mobile and will try to post as soon as i've saved them and figured out how to post them ???,

John S

 

[powerflux]

keep the fan and you'll be safe. if you don't it certainly won't be enough

 

[Zen Mod]

Hi Zen,

Thanks i've taken some with my mobile and will try to post as soon as i've saved them and figured out how to post them ???,

John S

reply-scroll down - manage attachments-browse-mark-open-upload-close this window-submit reply

keep them up to 1200pix , jpg or gif

 

[john s]

keep the fan and you'll be safe. if you don't it certainly won't be enough

Thanks yes i had realised that i know its not enough on its own i will also put in a sensor to switch off the amp if it gets to hot,

John S

 

[john s]

reply-scroll down - manage attachments-browse-mark-open-upload-close this window-submit reply

keep them up to 1200pix , jpg or gif

thanks Zen i still have to find them to post, to many photos of good looking women in the folder to scroll through, !!!!!

John S

 

[john s]

size is 9 inch long by 3 x 3

John S

 

[Zen Mod]

it will perfectly cool F5 , presumably with lazy spinning vent ( 7-8Vdc)

make tunnel around fins - you can use any sort of plastic foil for that ...... maybe piece of Roentgen (I scavenged full pack of these from buddy working in local lab) , so it will be most effective

attached fan control by Papa

it will start fan with full throttle and slow it down immediately

PSU voltage - simplest - just put 7812 reg in front , in case of feeding it from main amp PSU

 

[john s]

Thanks Zen
i'll tunnel it as you suggest yes i had intended fitting a circuit to power the fan
i think its 6 volts but will fit a pot to vary the speed,

regards all

John S

 

[john s]

Great thanks for the drg, ,

have a good day,

John S