pls help.
if i put two 5w resistors in parralel for r24, can i get 10w resistor.
what is the value of the resistor needed to get 2.2k?
(4.7k/2, 5w) =2.35k,10w ,is this correct value?
if i put two 5w resistors in parralel for r24, can i get 10w resistor.
what is the value of the resistor needed to get 2.2k?
(4.7k/2, 5w) =2.35k,10w ,is this correct value?
pls help.
if i put two 5w resistors in parralel for r24, can i get 10w resistor.
what is the value of the resistor needed to get 2.2k?
(4.7k/2, 5w) =2.35k,10w ,is this correct value?
It's correct.
try 4.4K/2 = 2.2K in the calculator is: 4400/2= 2200 ohms more precise I think just move the dot.
try 4.4K/2 = 2.2K in the calculator is: 4400/2= 2200 ohms more precise I think just move the dot.
hi ,
there is no 4.4k/5w resistors to buy. the standard values are 4.3k,4.7k.
thanks.
Mr. Mile this trafo enough for 500W to 4 ohm?
HI YOSIE,
DID U CHECK THE 4.7K/2W RESISTOR,
IS IT GETTING HEAT OR NORMAL.
WHAT IS UR DC VOLTAGE?
Last edited:
@nazirdigi: I use resistor 4K7 2Watts, the heat is normal cause i can still touch that resistor. The voltage is AC 56 - CT -56. regards
mr. miles
i used a different dc protect. the I've been using with my other amps. it is the relay near the small trafo. i used a small wire as fuse coz i cant buy a decent fuse holder in my place. the wire is rated 5 amps. i solder it on terminals that i put.
i also remove some parts for the dc protect.. hope you dont mind it sir apex.
thank for the designs you post.
still refinement on the amp coz my budget is limited..
more power
i used a different dc protect. the I've been using with my other amps. it is the relay near the small trafo. i used a small wire as fuse coz i cant buy a decent fuse holder in my place. the wire is rated 5 amps. i solder it on terminals that i put.
i also remove some parts for the dc protect.. hope you dont mind it sir apex.
thank for the designs you post.
still refinement on the amp coz my budget is limited..
more power
b500
greetings everyone...
this is what happened to my diy b500's trafo after loading 2 of these midtops in each channel and using it overnight in mobile application just last night...
regards
ees...
greetings everyone...
this is what happened to my diy b500's trafo after loading 2 of these midtops in each channel and using it overnight in mobile application just last night...
regards
ees...
Attachments
greetings everyone...
this is what happened to my diy b500's trafo after loading 2 of these midtops in each channel and using it overnight in mobile application just last night...
regards
ees...
what is the core size? looks like overloading, copper wires burned out from too much heat due to too much current....
greetings everyone...
this is what happened to my diy b500's trafo after loading 2 of these midtops in each channel and using it overnight in mobile application just last night...
regards
ees...
next time dont forget to put fuse before rectifier diode.did you try bridging the amplifier?
Last edited:
next time dont forget to put fuse before rectifier diode.did you try bridging the amplifier?
hi drownranger.
for putting fuses before rectifier what value fuses need?
so the fuses connect to secondary of ac lines to bridge rectifier, am i correct?
so need two fuses for two ac lines.
core size 1 1/2 x 5 rated 20 amperes
probable cause(i guess)
overloading less than 2 ohms
load
manex 15" rated 500w 8ohms instrumental speaker 4/channel
crown CS400 400w tweeter 2/channel
passive crossover dividing network crown cn15 &/or cn2500 2/channel
trafo- 240v primary input
SiNGLE COATED magnetic wire used primary & secondary
mainline supply voltage
225vac - 230vac
probable cause(i guess)
overloading less than 2 ohms
load
manex 15" rated 500w 8ohms instrumental speaker 4/channel
crown CS400 400w tweeter 2/channel
passive crossover dividing network crown cn15 &/or cn2500 2/channel
trafo- 240v primary input
SiNGLE COATED magnetic wire used primary & secondary
mainline supply voltage
225vac - 230vac
- Home
- Amplifiers
- Solid State
- 500W PA amplifier with Limiter