Amp Output
STK0080 OUTPUT STAGE OF AF POWER AMP IC 
10,TOHSIBA 2SB531 B531 Transistor for Audio AMP Output 
50,TOSHIBA 2SB531 B531 Transistor for Audio AMP Output 
50, NPN 2SC1306 C1306 Transistors for Power Output AMPS 
10, 13003B 13003 AMP Output Transistor TO-220 
10PCS, TOSHIBA NPN 2SC5200 C5200 AMP Output Transistor 
50, Fairchild E13005-2 AMP Output Transistor TO-220 
10pcs Fairchild E13005-2 AMP Output Transistor TO-220 
TDA7053A 18 V, Stereo BTL audio output amp LOT OF 10 
Pair of 2 RCA BG5101-2 Output Transistors for Vox Amps 
2SC2344 power amp, 100W output predriver application 
10, Fairchild 2SA940 A940 AMP Output Transistor TO-220 
2, 2SD371 D371 NPN Transistor Audio AMP Output TO3 
2,TOSHIBA 2SB531 B531 Transistor for Audio AMP Output 
10, NPN 2SC1306 C1306 Transistors for Power Output AMPS 
5pcs, 2SA1964 A1964 Audio AMPs Output Transistor TO-220 
10pcs,2SA1964 A1964 Audio AMPs Output Transistor TO-220 
50pcs,2SA1964 A1964 Audio AMPs Output Transistor TO-220 
10pcs,2SC5248 C5248 Audio AMP Output Transistors TO-220 
50pcs,2SC5248 C5248 Audio AMP Output Transistors TO-220 
5pcs,2SC5248 C5248 Audio AMP Output Transistors TO-220 
20,Fairchild E13005-2 AMP Output Transistor TO-220 m 
100,Fairchild E13005-2 AMP Output Transistor TO-220 m 
200, NPN 2SC1307 Transistors for High Power Output AMPS 
100x Fairchild 2SA940 A940 AMP Output Transistor TO-220 
20x Fairchild 2SA940 A940 AMP Output Transistor TO-220 
BC640 PNP Audio and GP High Output Amp TO-92 25 pc 
BC640 PNP Audio and GP High Output Amp TO-92 100 pc 
BC640 PNP Audio and GP High Output Amp TO-92 10 pc 
BC639 NPN Audio and GP High Output Amp TO-92 25 pc 
BC639 NPN Audio and GP High Output Amp TO-92 100 pc 
BC639 NPN Audio and GP High Output Amp TO-92 10 pc 
5x2SD371 + 5x2SB531 NPN Transistor Audio AMP Output TO3 
5pcs Fairchild E13005-2 AMP Output Transistor TO-220 m 
2x MJW21194 Audio Output AMP Transistor 250V 200W 
1, Fairchild 2SA940 A940 AMP Output Transistor TO-220 
50pcs, Toshiba 2SA1943 A1943 AMP Output Transistor 
100,Fairchild E13005-2 AMP Output Transistor TO-220 m 
STK1070II OUTPUT STAGE OF AF POWER AMP BY YAMAHA NOS! STK1070 
5PCS,TOSHIBA NPN 2SC5200 C5200 AMP Output Transistors 
10PCS, TOSHIBA PNP 2SA1943 A1943 AMP Output Transistor 
1x 2SA1943 +1X 2SC5200 AMP Output Transistor 
10, 2SD371 D371 NPN Transistor Audio AMP Output TO3 
10, NPN 2SC1307 Transistors for High Power Output AMPS 
2pairs (A940+C2073) New Original AMP Output Transistor FSC 2SA940 2SC2073 TO-220 
10pairs (A940+C2073)New Original AMP Output Transistor FSC 2SA940 2SC2073 TO-220 
5pcs A940 2SA940 940 Original AMP Output Transistor FSC TO-220 New 
5pcs C2073 2SC2073 2073 Original AMP Output Transistor FSC TO-220 New 
2pcs, Toshiba 2SA1943 A1943 AMP Output Transistor 
20x MJW21194 Audio Output AMP Transistor 250V 200W 
Fairchild E13005-2 AMP Output Transistor TO-220 
5pcs Fairchild E13005-2 AMP Output Transistor TO-220 m 
50, NPN 2SC1307 Transistors for High Power Output AMPS 
LOT OF 7 USED C2312 TRANSISTOR FOR AMP OUTPUT 2SC2312 
50, Fairchild 2SA940 A940 AMP Output Transistor TO-220 
10, K2996 AMP Output Transistor TO-220 
10, Fairchild E13005-2 AMP Output Transistor TO-220 
How Small Will They Get? – The New Generation Super-Mini Audio Power Amplifiers
Latest types of audio super-mini amplifiers prove that audio technology has gone the same course as computer technology and cell phones. Products are shrinking at a rapid tempo. At the same time, manufacturers are packing in more and more features. The majority of audio amplifiers would be tube amps in the past. Although a large number of fanatics still is fond of tube amplifiers, they have been substituted by solid state amps for the most part.
Modern solid-state amplifiers merge the traditional pre amp and power amp stages into a neat single package no larger than a DVD player. A new generation of super-miniature amplifiers, such as the Amphony Model 100 microFidelity amp, has become feasible due to new developments in audio technology regarding power efficiency. These mini amps take up no more room than a deck of cards but deliver up to 50 Watts, which is adequate to drive a speaker to high volume.
Past audio amplifiers with “Class-A” and “Class-AB” architectures have quite low power efficiency. Only a small percentage of the consumed power – typically in the order of 20% to 30% – is actually transformed into audio by analog amplifiers. The remaining portion is radiated as heat. This requires that depending on the supported output power, analog audio amps have to provide considerable cooling which is accomplished by employing heat sinks. These heat sinks do not permit these amplifiers to be made very small.
“Class-D” amplifiers are based on a digital design which offers higher power efficiency than “Class-A” or “Class-AB” amplifiers – normally in the order of 80% to 95%. Thus only a small portion is wasted as heat which was the key in being able to miniaturize audio amplifier designs. One major difficulty which has slowed the growth of “Class-D” amplifiers is audio distortion which is caused by nonlinearities of the switching output stage.
Newer amplifier technologies have emerged such as “Class-T” and newer “Class-D” architectures. These technologies, such as the one used in Amphony’s Model 100 provide for a feedback of the output signal to the amplifier input. This feedback allows the amplifier to compensate for nonlinearities of the output switching stage and thus lower audio distortion to comparable levels of analog amplifiers while preserving the audio efficiency of digital amplifiers.
These latest miniature audio amplifiers open up applications where previous amplifiers have failed. They are suited in particular for installations with minimum space, such as in ceiling speakers. Other applications include connecting speakers to a DVD/MP3 player or cable box.
Are earphone output and normal output on a guitar amp the same?
i have an amp with volume, treble,bass, clean/gain(button), input jack, and earphones jack. i want to get some effects pedal to go along with it like a wah pedal or an overdrive pedal. i want to know if it could be attached to the earphones jack or do i have to get a new amp with a specific output jack
OH man….your confused.
The headphone jack is nothing more than a jack for your headphones.
If you want to get a pedal that controls different settings on your amp than thats totally different but from what you’re saying your amp doesnt have the option to connect a pedal to IT.
But dats just the thing…..if you want to get a wah wah or overdrive pedal noone cares what your amp is, You could be plugging into a tv set for all I care.
These pedals and MOST pedals out there have an input for your guitar and an output for whatever amp your getting your sound out of. The pedal doesnt control the amp….it changes the sound going into it.
You have:
Guitar ……………..instrument cable………….pedal……………instrument cable……………..regular guitar input on amp (the one ur plugging into now)
All you need to get is a pedal and another cable if you dont have one.