Mark IIa Solid State Motor Control Relays
The Mark IIa solid state relays for Leslie 122 and 147/251 provide noiseless, quick and extremely reliable motor control. Installation is simple - they are 100% compatible with existing Leslie control circuits and no additional wiring is required from the console. All necessary materials for installation (except the three position switch) and complete instructions are provided.

As a bonus for 122 users, switching time with this device is virtually as fast as the 147. Our Leslie 122 relay also makes converting 147 amplifiers to 122 specs a snap. The relay control tube is eliminated, as are a number of other components!

Instructions and Warranty
Questions that may arise during installation and operation of Mark IIa solid state relays are likely covered in our detailed instructions and warranty documents. Click on these links to download the relevant PDF for the 122 or 147/251 models.

Models, Pricing and Ordering
The MKII relay is available in several versions. Be sure to order the correct relay for your application. The versions are:

(A)	122 - Universal for all voltages from 80-300 VAC.
(B)	147 - For voltages of 100-120 VAC. This may be used in the 251 amp as well.
(C)	147 - For voltages of 200-240 VAC. This is specific to some European versions with high switching voltage.
(D)	122A - Used in all 122A cabinets.
(E)	147A - Used in all 147A cabinets.

All versions except 122A and 147A can be ordered with the brake feature enabled (normally shipped), or coast only. The 122A and 147A versions are always shipped without the brake as the motor control in the Leslie provides the brake function.

There are other applications for controlling motors in other cabinets. Consult the factory for custom configurations.

For the 122 version, an optional, low cost ($2.00) board interfaces with the TREK II TS2-3, or any S.P.D.T., center off switch. The 147/251 version will interface with the TREK II TS2-3 as well. The 122 version will operate on any voltage from 80 - 300 and any frequency from 25hz to 80hz. The 147/251 versions operate from 80 - 240 vac. Either will operate on any frequency encountered. If the console switching is modified for tremolo-off-chorale operation, all Leslies used must be equipped with EIS relays. Although no damage to a stock Leslie will occur, switching will be erratic.

Due to the recent decline of the US dollar against other major currencies, as well as dramatic increases in the price of copper, relay prices are being increased slightly. Effective March 1, 2008, prices will be: 122, 122A version - U.S.$105.00; 147/147A/251 version - U.S.$110.00, plus S&H.

Dealer pricing available. Please call or e-mail about ordering.

Joey DeFrancesco approves!