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CA2622 Input Transformer
CA2622 Input Transformer
$45.00
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VP312-VPR No Input/Output (Variable)
[VP312-VPR-No-In-Out-Var]
 $138.24 
Number of Product Bundles in stock: 168

Click to enlarge

Click to enlarge

To avoid massive build errors, make sure the BOM Revision you follow matches the Revision of the PCB you are building!!

The VP312-VPR No Input/Output (Variable) is a kit comprised of every single part and component needed (sans opamp, input transformer and output transformer) to complete a VP312 microphone preamplifier. The VP312 is a single stage mic preamp for the 500 series format and is fully VPR compatible. The aluminum faceplate is wet painted and the aluminum L-bracket is yellow chromated.

The idea behind this kit is for someone who has a vintage 312 card and wants to convert it to 500 series use. Besides the AP2622, AP2503 and 2520, there is really nothing worth salvaging.

It should be noted that the original AP2622 is in an abnormally tall can. In fact it is too tall to be mounted standing up on the PCB. The best thing is to lay it down and secure it with a plastic wire tie. You will have to strategically place and drill holes for this but hey, it is DIY after all.

This kit includes a Bourns potentiometer for fully variable gain control. Kits using a Grayhill switch are also available for stepped gain control.

Complete VP312 kits with reproduction transformers can be found here

This product bundle contains the following items:
VP312-VPR Partial Parts Kit» 1 x VP312-VPR Partial Parts Kit
   177 pieces in stock
  $72.41
Bourns 25K CCW Audio Taper Potentiometer» 1 x Bourns 25K CCW Audio Taper Potentiometer
   182 pieces in stock
  $9.72
Bourns 600 ohm T-Pad Attenuator» 1 x Bourns 600 ohm T-Pad Attenuator
   224 pieces in stock
  $29.15
C&K SPDT Flat Lever Toggle Switch» 1 x C&K SPDT Flat Lever Toggle Switch
   168 pieces in stock
  $3.98
Toneluck 2PDT Pushbutton Switch» 3 x Toneluck 2PDT Pushbutton Switch
   1841 pieces in stock
  $2.10
C&K Black Bullet Switch Cap» 2 x C&K Black Bullet Switch Cap
   635 pieces in stock
  $0.38
C&K White Bullet Switch Cap» 1 x C&K White Bullet Switch Cap
   291 pieces in stock
  $0.38
DOA PCB Socket Set» 1 x DOA PCB Socket Set
   4354 pieces in stock
  $3.84
CAPI 5-50-1A Control Knob» 1 x CAPI 5-50-1A Control Knob
   202 pieces in stock
  $5.60
CAPI 5-62-1B Control Knob» 1 x CAPI 5-62-1B Control Knob
   329 pieces in stock
  $6.10

Cost of separate items: $138.24

This product was added to our catalog on Saturday January 02, 2016.
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Classic Audio Products, Inc. is not affiliated with API. Customers and fans should not refer to Classic Audio Products, Inc. as "Classic API." API is a registered trademark of Automated Processes Incorporated. Classic Audio Products, Inc. has no affiliation with Automated Processes Incorporated.
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