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markus82
11-30-2015, 04:25 AM
hello everyone and thank you all for having me here

just getting started with building my own amp

well see how it goes and hopefully i wont blow up the transistors

FATKAT
11-30-2015, 04:46 PM
Hi markus and Welcome

markus82
12-01-2015, 03:18 AM
thank you fatkat

222FL
12-01-2015, 04:47 AM
Welcome markus82. What transistors are you using for your amp build?? Just curious?? The pill type or MOSFET?? Again, just curious. Be safe if it's HV stuff!! And take your time. Hope to see some pics of a completed and working amp.[emoji106]

markus82
12-01-2015, 10:43 AM
hello 222FL (http://www.cbjunkies.com/members/3099-222FL) i have managed to get mt hands on a matched pair of 2SC2879 from RF parts and im hoping to build my self a nice two pill to start with and work up from there... at the moment im running a Texas star DX 500 a really amazing amp cant fault it

222FL
12-02-2015, 06:16 AM
Take your time and check everything twice!! Should work well if you do it right. Find a schematic for getting it AB biased with thermal tracking and you'll have a sweet little amp that won't need much input to get a good clean signal out!! Good luck and enjoy!!

markus82
12-02-2015, 09:56 AM
Take your time and check everything twice!! Should work well if you do it right. Find a schematic for getting it AB biased with thermal tracking and you'll have a sweet little amp that won't need much input to get a good clean signal out!! Good luck and enjoy!!

thank you 22FL im still getting all the parts so the amp is a long way off...

still trying to get my power supply finished just need to get my hand's on some old school army volt and amp guages and give the box a lick of apint and my ppower supply's ready to take a hammering

markus82
12-02-2015, 10:09 AM
http://cache.freescale.com/files/rf_if/doc/app_note/AN1977.pdf

222FL
12-02-2015, 12:23 PM
Sounds as if you got it going on there man!! Good deal. Post up some pics when it's done. Always nice to see some nice home built stuff!!

markus82
12-03-2015, 04:28 AM
1965

that's my home brew power supply iv almost finished, trying my hardest to get my hands on some old school army gauges for the front of the box its an old army ammo box iv used with a 200 amp mig welding tranceformer at 50% duty cycle should give me 100 amp's it seam's to run my texas star well any way :D

222FL
12-03-2015, 06:14 AM
Looks nice man. Gauges would be nice on the front no doubt.
Getting the amp meter will be the harder one to find I would think. The volt meter shouldn't be as hard to find. We have a place in Orlando, FL called Skycrafters and man do they have it all!! Nice shop to go to and find some old parts!! Not sure if they have a website or not, but I'm sure they do. You might be able to inquire about the gauges, if you need them that is. At any rate, looks nice. Be safe working around that AC stuff man!! No jewelry or metal near you man!!! And wear some real heavy soled rubber bottom shoes!! JK, but seriously, be safe man!! Keep up the good work. [emoji106]

markus82
12-03-2015, 08:17 AM
mate thank you ill see if (Skycrafters) have a website and give them a shout..
ye i cant wait to get al lest the power supply doe i can paint it army green then dont ask why its red that's how i got it from a car boot sale...

i get you with the AC it's not a nice getting a shock, alway's turn the mains off befor hand and some nice heave bleed resistor's cove the cap's to drain the voltage