Punch 150 outputs transistors

Brain Fried · 6th May 2010, 08:20 PM

Here my Q can i use the BUZ21 & BUZ272 in place of the 2N6487 & 2N6490 in the Punch 150 it not the HD.

1moreamp · 6th May 2010, 08:25 PM

No ! your trying to use Mosfets to replace Bi-polar junction transistors with> this will not work without circuitry modding... Sorry

Brain Fried · 7th May 2010, 06:44 AM

Quote:

Originally Posted by 1moreamp

No ! your trying to use Mosfets to replace Bi-polar junction transistors with> this will not work without circuitry modding... Sorry

had to ask thanks for your reply.

1moreamp · 7th May 2010, 01:59 PM

Try to use TIP35 and TIP36 as outputs. it worked for me a many years ago. Beefier current capacity and higher reliability are the only possible gains to be had doing this IMO. A bit tricky making the leads connect also since its not the same package style...But it worked pretty darn good when it was completed. You will jump from a 15 amp collector current rating to a 25 amp collector current rating and a much larger sink connection surface under the transistor die which aids heat dissipation....

6th May 2010, 08:20 PM	#1
Brain Fried diyAudio Member Join Date: Apr 2010	Punch 150 outputs transistors Here my Q can i use the BUZ21 & BUZ272 in place of the 2N6487 & 2N6490 in the Punch 150 it not the HD.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Punch 150 schematic needed	brandes.cm	Car Audio	34	23rd October 2011 03:01 AM
RF Punch 150	chipper	Car Audio	8	24th September 2009 12:08 AM
Need Part ID on Punch 150 (old style)	Scanlines	Car Audio	2	27th March 2009 07:32 PM
Punch 150 Butcher	0ldSch00lf00l	Car Audio	25	7th January 2009 04:59 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

6th May 2010, 08:25 PM	#2
1moreamp diyAudio Member Join Date: Dec 2005 Location: Northern California	No ! your trying to use Mosfets to replace Bi-polar junction transistors with> this will not work without circuitry modding... Sorry

7th May 2010, 01:59 PM	#4
1moreamp diyAudio Member Join Date: Dec 2005 Location: Northern California	Try to use TIP35 and TIP36 as outputs. it worked for me a many years ago. Beefier current capacity and higher reliability are the only possible gains to be had doing this IMO. A bit tricky making the leads connect also since its not the same package style...But it worked pretty darn good when it was completed. You will jump from a 15 amp collector current rating to a 25 amp collector current rating and a much larger sink connection surface under the transistor die which aids heat dissipation....

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)