CHANGE CAPSTAN SPEED and /or EQUALISATION

You can change speed and / or equalisation on F36, G36, A77, B77 and PR99. 

With whatever you order PLEASE send a note exactly what machine, what speed change and what equalisation change.   On the mechanical side. You MUST send  your old capstan shaft or complete motor. When you send your old shaft / motor, we refund you the deposit.  The speed change price includes the refundable $300 deposit.

Speed or equalisation change is NOT a matter of changing shaft for speed changes. It involves the capstan motor and its mounting position as well as equalisation parts on a number of tape transport and audio boards. Our instructions are included to make sure all changes are done correctly.   Please note that cosmetically the front face plate printing will need to be neatly amended with a sticker to show the correct speeds.

For B77 and PR99 there are more options - fFrom SLS  (super low speed), LS (low speed) to NS (normal speed) or HS (high speed).  For A77, F36 and  G36  generally NS to HS. 

The Capstan Motor Shaft and motor body special adapter eccentric bushes are the main expense.  We offer a mechanical conversion kit which includes a service exchange shaft  (we charge a fully refundable deposit  of AUS$ 300  which is refunded if your shaft journals are serviceable - most are OK).   The capstan shaft you get will be the correct diameter AND also have been surface reconditioned (dull grey as per factory spec). YOU SHOULD also be purchasing a motors overhaul kit with this which includes bearings, lubricants, washers, shims etc for all 3 motors. Remember to add to your order.

Equalisation Change From NAB to IEC and IEC to NAB and change in speed.    All machines that are SLS  (super low speed), LS (low speed) or NS (normal speed) are usually NAB only.   The most involved conversions are to HS NAB (CCIR/IEC is less complex as far as audio board modifications is concerned).  Speed change also requires specific speed change equalisation changes even if you keep the same equalisation standard.

A detailed instructional service sheet is included showing all the components that need to be changed.  We also include any factory updates to later versions eg  .81, .82, .83.

You will need BOTH a mechanical and an electronic speed change / equalisation kit to do a full speed change for A77, B77 and PR99.. 

Remember to send a note with your order. We need to know all the details of what you have and what you want to change to.  ie Machine model, mk version, speed current, new speed, current equalisation, new equalisation.

F36 and G36 is a lot more involved and advise that  we do the motor and head block for you.   The lower head block sub assembly must be sent because it needs to be be precision milled. (Please note: - not the upper head block subassembly on which the heads are mounted (do not remove any heads!)),   If you want to avail yourself of this, please make email contact and we will send you instructions how to take your motor and head block sub assembly units out and how to send to us. Do not buy any kit yet, we will add your requirements to a final invoice which will be raised when the work is complete on your parts.    This option includes the necessary electronic equalisation kit of parts and instructions.