PJCCS Upgrade for Quickie


A kit as accessible and simple as the Quickie battery powered tube preamplifier is just begging for modifications. Here’s Bottlehead’s first upgrade kit for the Quickie, the Paul Joppa Compensating Current Source. This is a current source similar to the ones we provide in our more expensive kits, but with an added twist. The Quickie battery supply voltage will of course slowly run down during the 100-200 hours of battery life that is typical. A typical current source would stop working as the voltage from the supply got too low. But this current source will adjust the current as the supply voltage runs down.

What’s the sonic benefit? The PJCCS lowers distortion at any given output level, and that leads to better image scale and definition. Bass can be improved as well. As with any of our upgrades the difference is distinct enough to hear right away.

This Skill Level 1 kit is assembled on one of our SRC4S PC boards and goes together in an hour or two. Simple step by step instructions are included. A worthwhile upgrade? Shoot, for $35 it’s more like a no brainer.

SKU: PJCCS Category:

DISCOUNTS: When you buy 1 > Regular Price: $35.00USD  •  When you buy 2 or more > Sale Price: $31.50USD  •  Save: $3.50USD (10%)!

Your pre-order will be charged the day the kit is ordered. We do this to allow cash in advance payment to our vendors to keep the price you pay as low as possible. DIY audio is a very focused esoteric market. We are a small staff with a large passion, attempting to offer the broadest range of kits possible to those interested in this exclusive pursuit of ultra high quality audio reproduction, Thus each kit is manufactured and packed to order, and the production and packaging schedule is influenced by demand. Please understand that our shipment can take up to 3 to 6 weeks when demand is high. You may check how shipping is progressing for a kit by looking here.

Additional information

Weight 1 lbs
Dimensions 9 x 6 x 2 in


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S.E.X. kit on sale through July 21st. We have moved! Check the Contact page. Dismiss