Adjustments, Maintenance & Calibration

Topic	Replies	Last reply Sort ascending
Normal topic 1978 HD130 Head just before changover new series By pleiksnal 11 years 10 months ago	9	By lmv 11 years 10 months ago
Normal topic Bias on 212 HD-130 By ledocs 11 years 10 months ago	10	By JoJo 11 years 10 months ago
Normal topic RD50 Clean Channel Changes? By inertian 11 years 10 months ago	5	By inertian 11 years 10 months ago
Normal topic LM307H OpAmps - Offshore Purchase By codamedia 11 years 11 months ago	10	By codamedia 11 years 10 months ago
Normal topic Transistor Bias Calibration Music Man 212-75 By hossymandias 12 years ago	7	By mm210 11 years 11 months ago
Normal topic Biasing My HD 130 Bass head? By Massbass50 12 years 1 month ago	7	By mm210 12 years 1 month ago
Normal topic Swapping IC's on a SS 212 Sixty-Five By jochen.wendeba… 12 years 3 months ago	3	By codamedia 12 years 2 months ago
Normal topic Power Transformer for HD-212 By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Low power setting? ...210-65 By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic HD130 biasing question By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Oregon: Shop for Overhaul? By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Tremolo on high but not low power By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic LM307 replacement/troubleshooting my pre By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Just got Musicman 4x10 HD "Sixty-Five" By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic 112-RP-100 Won't Power up! By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Use EL-34s or 6AC7s? Does it matter? By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic "Clipping" sound from 210 Sixty Five By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Bias setting for 210 Sixty Five ? By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic RD 2100 Distortion issues By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Lots of questions please help By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Standby without speaker By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Did new E34L fail during bias? By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Bias voltage for 12ax7 HD130 w/E34L? By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic Schematics?? By jochen.wendeba… 12 years 3 months ago	0	n/a
Normal topic How can I tell if Reverb is working? By jochen.wendeba… 12 years 3 months ago	0	n/a