1000 pf, 50 KV Peak, Comet CV3A-1000ES/50 Variable Vacuum Capacitor


Capacitance 40-1000 pf
Voltage Rating 50 KV
Current Rating 221 Amps RMS

The capacitor is a Ceramic, VARIABLE capacitance, vacuum capacitor. 40-1000 pf capacitance rated at 50 KV peak voltage. These units are removed from equipment, checked, and guaranteed.

LAMi-Con Series

3 in stock

Comet CV3A-1000ES/50 ceramic, variable, vacuum capacitor

Rated Capacitance 40-1000 pF
Peak Voltage 50 KV
Current Amps (RMS) Maximum 221 Amps
Shaft Diameter 1/2 inch
Turns for Full Travel Max 68
Important Dimensions
Max Length 14.64 in / 372.00 mm (including shaft)
Max Diameter 8.19 in / 208.00 mm
Weight 493.00 oz / 14.00 kg
12x drilled and tapped holes for front and rear end mounting
Condition Removed from equipment, checked and guaranteed

Spec Sheet

(Other variations of this capacitor are sometimes available, inquire)
CV3A-1000ES/50 CV3A-1000 CV3A-1000ES
CV3A-1000E CV3A-1000F CV3A-1000ESB
CV3A-1000FYS CVLA-1000AA/50-AAB-P CVLA-1000AA/50-AAB
CVLA-1000AA/50-AAB-P1 CVLA-1000AA/50-ABB-P CVMA-1500AC/40-AAB-JP


Shaft, Knobs, and Mounting Accessories

Capacitor Accessories - Max-Gain systems, Inc
Capacitor Accessories

Other Vacuum Variable capacitors with Maximum Capacitance of 501 pF to 1000 pF

Variable Vacuum Capacitors Rated from 501 pF to 1000 pF Quad - Max-Gain systems, Inc
501 pF to 1000 pF Maximum

All Available Vacuum Capacitors by Capacitance

Vacuum Capacitors - Max-Gain systems, Inc
All Vacuum Capacitors

“Out of spec” and “budget” capacitors:

If you want the quality and performance of vacuum capacitors, but the budget just won’t allow it, (or if you are just looking to save some money) we frequently have “out of spec” capacitors. These capacitors do not meet the specifications for the particular model. This can happen because of many reasons, but they are still perfectly usable in other capacitance ranges or maximum voltages.

For instance, we might have a type that is listed at 15 kv, but tests good to 12 kv. In this case, we will not sell it to a user who needs 15 kv ratings, but if you need only 5 kv, 7.5 kv, or 10 kv, this capacitor would do nicely. If you want us to check our “out of spec” shelves for current stock, just tell us your capacitance range and voltage requirements (and current rating if you know it… or approximate power level) and we will let you know what we have available at steep discounts! Inquire here!


We also frequently have in stock many vacuum capacitors which have cosmetic blemishes such as dents, which would not meet our high standards for regular sale, but which still check good, both in range, and in their ability to withstand voltage.

Some dents will damage or totally destroy a capacitor. Others, if they occur in just the right places, cause no harm at all. We have the knowledge and test capability to make these determinations, and if they pass our stringent testing, sell these units at discounted prices with our regular guarantee! If interested in these units, please inquire as to current availability.

If you don’t see what you wanted:

These pages show only a fraction of the stock we have available. We have many thousands of vacuum capacitors, both fixed and variable, as well as vacuum relays. This stock changes daily. If you have requirements for items not listed in these product lines, please Email, and our knowledgeable staff will search our inventory. (Don’t forget to give us your email address and contact information!)

Did you know?

We will buy your used and overstock vacuum capacitors and vacuum relays?

Max-Gain Systems, Inc. is the one source to liquidate your excess inventory of vacuum capacitors and vacuum relays. REDUCE warehousing costs, REDUCE aging inventory & OPTIMIZE warehouse space by selling us your unwanted inventory. New and old stock, used and even removed from working equipment, one unit to one thousand plus, you can make money as well as go green. In addition, most of the surplus items we buy are able to go right back into facilities and into the hands of individuals that need a low cost replacement to keep their plants and broadcast stations up and running.

Sell your New and Used Overstock vacuum capacitors and vacuum relays by emailing us. Please include how many, the manufacturer’s part number, and their condition, along with your full contact information. We will reply within one business day.

About Max-Gain Systems, Inc.

Max-Gain Systems, Inc. carries a full line of in-series, between series, right angle, T-shaped, quick connect, handie-talkie (BLACK), pigtails (coaxial jumpers), etc… RF adapters. Our RF adapter lines are constantly expanding. We keep our RF connector and adapter lines in stock. We ship both retail and wholesale quantities. To become a dealer / wholesale user, contact us with your potential usage.

Max-Gain Systems, Inc. is the number one supplier of fiberglass round hollow tube, square tube and round solid rod to the antenna manufacturing industry. We produce millions of feet a year for hundreds of different industries including but not limited to: marine / boating, aeronautical, agriculture, construction, emergency services, etc…. We have the unique ability to sell one piece or even a semi-truck full. Feel free to prototype using our fiberglass tube and rod then contact us for a quote on a production run. At production run quantities we can cut to your desired lengths at no additional charge, and we can also perform several different fabrications (example: drilling holes in precise locations along a tube) to ensure your delivered material is ready for assembly. We have several accessory items designed for our fiberglass including but not limited to: couplers, telescoping clamps, ferrules, etc…

Additional information

Shipping Weight 353.00 oz
Shipping Dimensions 18.00 × 18.00 × 24.00 in


Min Capacitance

Max Capacitance


50 KV

Current Rating

221 Amps

Shaft Diameter

1/2" OD Shaft


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