Amplificadores Operacionales / Opamps

AD8066
AD825
AD8610
BUF634
NE5534
OP275
OP37
OPA132
OPA134
OPA604
OPA627
TL072
UA741

BJT

Power bjt

MJL1302 (similar a 2SA1302)
MJL3281 (similar a 2SC3281)

power MOSFETS

Lateral Mosfet

2SJ162
2SK1058
ECX10N16
ECX10P16
 

Transformadores de salida e interetapa / Output transformers & interstage

La expresión que relaciona impedancias (Z) con inductancia (L) número de espiras (N) y relación de transformación (a) vale:
 

1. Single-Ended

* -------------------------------------------------------------------
* SINGLE-ENDED TRANSFORMER WITH 8 OHMS SECONDARY
*
* (1) o------
*            )
*            ) ||  -----o (4) 8 ohm
*            ) || (
*            ) || (
*         LP ) || ( LS
*            ) || (
*            ) || (
*            ) ||  -----o (3) GND
*            )
* (2) o------
*
*--------------------------------------------------------------------

LP = inductancia del primario
LS = inductancia del secundario
Zspk = impedancia altavoz (8 ohms)

*--------------------------------------------------------------------

Single-Ended 3k
Single-Ended 3.5k
Single-Ended 4k
Single-Ended 4k5
 

2. Push-Pull

*------------------------------------------------------------------
* PUSH-PULL TRANSFORMER WITH 8 OHMS SPEAKER SECONDARY
*
*
* (1) o------
*            ) ||
*            ) ||  -----o (5) 8 ohm
*        LP1 ) || (
*            ) || (
* (2) o------) || ( LS
*            ) || (
*            ) || (
*        LP2 ) ||  -----o (4) GND
*            ) ||
* (3) o------
*
*
*------------------------------------------------------------------

Push-Pull 1k
Push-Pull 2k
Push-Pull 2.5k
Push-Pull 3k
Push-Pull 3.4k
Push-Pull 4k
Push-Pull 5k
Push-Pull 6k
Push-Pull 10k

3. Ultra-Linear (40% taps)

*------------------------------------------------------------------
* ULTRALINEAR TRANSFORMER WITH 40% TAPS AND 8 OHMS SPEAKER TAPS
*
* (1) o------
*            )
*            ) ||
*        LP1 ) ||
*            ) ||  -----o (7) 8 ohm
* (2) o------) || (
*            ) || (
*            ) || (                        Raa = (1) to (5)
*        LP2 ) || (                        Ra = (1) to (3) = 1/4 Raa
*            ) || (
* (3) o------) || ( LS
*            ) || (
*            ) || (
*        LP3 ) || (
*            ) || (
* (4) o------) || (
*            ) ||  -----o (6) GND
*            ) ||
*        LP4 ) ||
*            )
* (5) o------
*
* -------------------------------------------------------------------
 

Ultra-Linear 1k
Ultra-Linear 1.5k
Ultra-Linear 2k
Ultra-Linear 2.5k
Ultra-Linear 3k
Ultra-Linear 3.4k
Ultra-Linear 4k
Ultra-Linear 4.3k
Ultra-Linear 5k
Ultra-Linear 6k
Ultra-Linear 7k
Ultra-Linear 8k
Ultra-Linear 9k
Ultra-Linear 10k
 

4. Interstage Xmers

Lundahl LL-1660-10ma (SE to PP transformer)
Sowter 9083