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TOROIDAL TRANSFORMER 100VA 120 / 235V INPUT 2 x 25V OUTPUT



tr8040.jpg
Specifications
power: 100VA
input: 235 or 120V - 50/60Hz
output: 2 x 25V
connections: 7.8" PVC, stripped and tinned leads
primary: black - black : 1 x 230V / brown - brown : 1 x 110V
secondary: *red - yellow / *blue - gray (* = start)
primary voltage: 230V
primary-secondary insulation: >4kV
secondary-secondary insulation: 500V
insulation category: class A, 105°C
approvals: EN 60742/BS3535
fuse: 130°C thermal fuse
Overall dimensions Circumference 3.625in x height 1.625in
(TR8040)
 
Quantity
Price
1 – 9$49.56
10 – 99$46.04
100 +$44.50

 
  (Component or Part)  
  TR8040  
  4  
 
 
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DISCRETE POWER AMPLIFIER 200W
 
Features
excellent value for money
fully discrete design using Epitaxial Darlington transistors
DC supply circuit on board with LED indication
ideal for active speaker system or subwoofer, guitar amp, home theatre systems, instrument amp, etc.
comes complete with transistor isolators, spacers and bolts
overload and short-circuit protection

Specifications
200W music power @ 4 ohm load
100Wrms power @ 4 ohm load
70Wrms power @ 8 ohm load
distortion: 0.02% @ 1KHz/10W
damping factor: >800
frequency response: 3Hz to 200KHz (-3dB)
sensitivity: 0.6Vrms
signal to noise ratio: 115dB
power supply: 2 x 25-30Vac / 120VA
PCB dimensions: 107x62mm (approx.)
(Power transistors supplied with kit is a TIP147 & TIP142)
recommended heatsink: HSVM100 (pre-drilled) or S44/75 (not drilled)
recommended power transformer:
230VAC input, 2 x 30VAC output: 12030
115 / 230VAC input, 2 x 25VAC output: TR8040 (output power reduced by ±15%) (K8060)
Quantity
Price
1 – 9$26.74
10 – 99$24.84
100 +$24.01

  (Kit - Basic Soldering Required)  
  K8060  
  3  
 
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50W amplifier module TDA7294
 
The heart of this amplifier module is a monolithic integrated circuit from SGS-Thomson, TDA7294. It is intended for use as an audio class AB amplifier in hi-fi applications. It has a wide voltage range and output current capability, enabling it to supply the highest power into both 4 Ohm and 8 Ohm loads. With the addition of a handful of parts and a suitable power supply, this module will deliver > 50W RMS into 8 Ohm @ 0.1% THD. HEATSINK NOT INCLUDED. User must supply a heatsink rated at 1.4 deg C/W.

Specifications (± 35V D.C. power supply)
Output power : > 50W RMS, 4-8 Ω load
~ 80W into 4Ω max.
~ 60W into 8Ω max.
Gain: 24 dB (30dB modification)
Input sensitivity : 1.3V for 50W, 8 ohm
0.9V for 50W, 4 ohm
(0.6V, 50W, 8Ω, G=30dB)
Input impedance : 10kΩ
Signal-to-Noise ratio : > 95 dB, (>105 dBA)
Frequency response : ~ 20Hz - 200kHz, –3 dB
Slew rate : > 10V/uS
THD : < 0.01%, 1W-40W,1kHz
< 0.1%, at 50W, 20-20kHz
IMD : < 0.01%, 1W

(CPS106)
Quantity
Price
1 – 9$29.07
10 – 99$27.00
100 +$26.10

  (Kit - Basic Soldering Required)  
  CPS106  
  6  
 
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Dual Unregulated Power Supply (kit)
 
designed for our CPS106 audio power
amplifier. It is also suitable for any power
amplifier module or circuit requiring a
positive and negative rail voltage of up to
45 Volts per side. The output voltage and
current will depend on the transformer
chosen, and this is not supplied with the
kit. Never use a transformer larger than
35V-0-35V, as the capacitors voltage
rating will be exceeded. (CPS186)
Quantity
Price
1 – 9$11.97
10 – 99$11.34
100 +$10.40

  (Kit - Basic Soldering Required)  
  CPS186  
  4  
 
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200W POWER AMPLIFIER MODULE  (Out of Stock)
 
Features:
excellent value for money
fully discrete design using Epitaxial Darlington transistors
DC supply circuit on board with LED indication
ideal for active speaker system or subwoofer, guitar amp, home theatre systems, instrument amp, etc.
comes fully adjusted and tested
overload and short-circuit protection

Specifications:
200W music power @ 4 ohm load
100Wrms power @ 4 ohm load
70Wrms power @ 8 ohm load
distortion: 0.02% @ 1KHz/10W
damping factor: >800
frequency response: 3Hz to 200KHz (-3dB)
sensitivity: 0.6Vrms
signal to noise ratio: 115dB
power supply: 25-30Vac 120VA
PCB dimensions: 107x62mm (approx.)
recommended power transformer:
230VAC input, 2 x 30VAC output: 12030
115 / 230VAC input, 2 x 25VAC output: TR8040 (output power reduced by ±15%)
(VM100)
Quantity
Price
1 – 9$79.65
10 – 99$73.98
100 +$71.51

  (Assembled and Tested)  
  VM100  
  0  
 
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