Teleologist wrote in article

> The Accutronics numbers contain lots of information. For example the common
> BF Fender tank is Accutronics #4AB3C1B where: 4=Type 4 - 4 springs

NOTES: The Type number does not by itself tell you the # of springs. Looking
at my chart the Type codes are: 1 = 2 springs, 3 = 4 springs, 4 = 4 springs,
6 = 2 springs, 8 = 3 springs, 9 = 6 springs. The delay codes are 1 = short,
2 = medium, and 3 = long.

Index:

AB crossover	Amp Classes Defined	Amp Classes Explained	Amp Mods Harmful
Bass Cutoff Frequencies	Bias adjust safeguard	Bias Cathode Resistors	Bias Shift
Biasing methods	Biasing	Channel Switching LDRs	Choke Input Filter
Circuit Memory	circuits	Drop B+	Eyelet board
Fender Response Curves	FET source follower	Filament Cathode Ground	Fixed to Cathode Bias
FM Transmitter Voltages	Grid Blocking	Identify Power Trans Leads	Load Impedance
LV No PC boards	Output impedances	PC Boards	PCB amp problems
Phase Inverter Resistors	Pilot Light Tone	Rectifier voltage drops	Resistor Design
Resistor Max Voltage	Resistor noise	Reverb Tank Types	Reverb tanks
Screen Grids	Standby Switch Ratings	Standby switches	TAME Digest
Tone Circuits	Transformer Design Book	Transformer Info	Transformer Placement
Zener Voltage Drop