Air Supply Control:
Threaders; Using "hit an miss" , I have setteled upon a professional-type Air Control Unit I use to deliver a clean, oil free air supply from the Maplenoll Quiet Pump. The product , manufactured by Central Pneumatic, available at Harbor Freight , on-line or in their stores, # SKU 1118, consists of a air regulator, air control and filter unit. The specifications are ; operating pressure 160 PSI (Max.), Inlet size 1/2"NPT , Oultet size 1/4"NPT ( adapters/barbs required) , re-useable/ replaceable filter , Dimensions 11-3/4" Tall x 3-7/8" Dia. x 8-3/4" Deep , Weight 5-1/2 lbs., Filter up to 40 microns and Max.Capacity 21 C.F.M. @ 90 PSI. Sale Price $29.99. The Unit enters the air supply chain a few feet from the air output of the QT.
After the Air Control Unit, I follow-up with a secondary oil/water separator, a replaceable air filter , a charcole filter, a plenum (6"x41") that sends pressurized air to room where the 'Noll sits. At the 'Noll, all Walker Recommendations were implemented exactly as written with additional plenums/charcole filtering followed by 100' of tubing dedicated to the tone-arm . With the exception of a tweak here and there, the air supply chain is complete. More to come later.
Threaders; Using "hit an miss" , I have setteled upon a professional-type Air Control Unit I use to deliver a clean, oil free air supply from the Maplenoll Quiet Pump. The product , manufactured by Central Pneumatic, available at Harbor Freight , on-line or in their stores, # SKU 1118, consists of a air regulator, air control and filter unit. The specifications are ; operating pressure 160 PSI (Max.), Inlet size 1/2"NPT , Oultet size 1/4"NPT ( adapters/barbs required) , re-useable/ replaceable filter , Dimensions 11-3/4" Tall x 3-7/8" Dia. x 8-3/4" Deep , Weight 5-1/2 lbs., Filter up to 40 microns and Max.Capacity 21 C.F.M. @ 90 PSI. Sale Price $29.99. The Unit enters the air supply chain a few feet from the air output of the QT.
After the Air Control Unit, I follow-up with a secondary oil/water separator, a replaceable air filter , a charcole filter, a plenum (6"x41") that sends pressurized air to room where the 'Noll sits. At the 'Noll, all Walker Recommendations were implemented exactly as written with additional plenums/charcole filtering followed by 100' of tubing dedicated to the tone-arm . With the exception of a tweak here and there, the air supply chain is complete. More to come later.