Tony's Arcade

Here are my notes for identifying and replacing the electrolytic capacitors and transistors on ALI’s 1971 Sonic Fighter.

As most of these electrolytic capacitors used non-standard values (well, compared to the past decade) it was difficult sometimes to find an equivalent (e.g. 2.2uF) so I tried to find a capacitor that was close in value (e.g. 2.5uF). There are some capacitors that are greater in voltage value or radial instead of axial because they were cheaper than the original part.

Sound Effects PCB

Electrolytic Capacitors
10uf 100V Axial (original was 10uF 64V): Mouser 140-XAL100V10-RC
100uF 100V Axial (original was 100uF 64V): Mouser 140-XAL100V100-RC
47uF 50V Axial (original was 50uF 40V): Mouser 140-XAL50V47-RC
2.2uF 100V Axial (original was 2.5uF 64V): Mouser 140-XAL100V2.2-RC

Amplifier PCB

Electrolytic Capacitors
(1) 1000uF 50V Radial (original was Axial): Mouser 647-UPS1H102MHD1AA
(1) 250uF 50V Axial (original was 40V): Mouser 75-TVA1312-E3
(1) 330uF 25V Axial (original was 320uF): Mouser 75-516D337M025-E3
(1) 400uF 25V Axial: Mouser 75-TVA1208.7
(1) 120uF 50V Axial (original was 125uF 16V): Mouser 647-UPM1H121MPD1TD
(1) ? Mystery Capacitor

Transistors
(2) 2N4241 TO-3: Very difficult to find a replacement. Can use EFT250 as a substitute; sometimes found on eBay (~US$1.75).

Motor Rectifier Circuit

Electrolytic Capacitors
(1) 1000uF 50V Radial (original was 25V Axial): Mouser 647-UPS1H102MHD1AA

Explosion Relay Circuit

Electrolytic Capacitors
(1) 100uF 100V Axial (original was 100uF 64V): Mouser 140-XAL100V100-RC

This entry was posted on Saturday, March 20th, 2010 at 10:24 pm and is filed under Allied Leisure Sonic Fighter (1971). You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.