CURRENT BID
10.00CADby U**k
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Live Online Auction Starts In
2026 Jun 17 @ 10:00 (UTC-07:00 : PDT/MST)
Preview: June 13th (10am - 5pm)
Pick ups: June 17th - June 20th (10am - 5pm)
Pick up for day 1 items only on the 17th. Day 2 Items will not be available for pickup until the 18th.
Preview and Pick up location: 27294 Fraser Hwy, Aldergrove, BC V4W 3P8
* Please read the IMPORTANT LOT! Placing your bid is your acceptance of all Terms and Conditions, Buyers Premium, Taxes, Shipping and Payment information.
*The Mad Picker has now merged with Direct Auctions.
• ALL items are AS IS WHERE IS, NO
George Gott Model G-30-U and Model GDP-50-P are rare, highly collectible mid-1950s vacuum tube audio components manufactured by Bigg of California. Designed by George Gott, these mono hi-fi units were praised for delivering high performance at an affordable, consumer-friendly price point.George Gott Model G-30-U Mono Power AmplifierThe G-30-U is a compact monoblock power amplifier rated at 30 watts. It relies on a classic, ultra-linear Williamson-type circuit design known for low distortion.Tube Complement: It typically utilizes a pair of 5881 (or 6L6) power output tubes, a pair of 6SN7 driver/input tubes, and a 5U4 (or 5AR4) rectifier tube. (Note: Later production runs occasionally substituted the 6SN7s for 12AX7/12AU7 miniature tubes).Physical Specs: Measures 12 by 8.5 inches with a 7-inch height.Key Features: Equipped with a manual hum-balancing potentiometer and two auxiliary AC outlets. It does not feature a dedicated power switch, as it was designed to plug into and be triggered by a master control preamplifier.Performance: Features an input sensitivity of 0.22 volts for a 1-watt output, with a hum level measured at an impressive 83 dB below 1 watt.George Gott Model GDP-50-P Mono PreamplifierThe GDP-50-P (frequently cross-referenced with its sister model, the GP-30-P) is a self-powered companion tube mono preamplifier designed to act as the control hub for the power amp.Equalization & Inputs: Features multiple audio inputs alongside five distinct phonograph equalization curves, which allowed 1950s audiophiles to precisely match different vinyl record cutting characteristics before the RIAA standard became fully universal.Controls: Outfitted with dedicated, step-adjustable rotary controls for bass and treble tone adjustments.Power Integration: Includes the master power switch required to turn on integrated power amplifiers like the G-30-U via shared AC lines.Modern Vintage Market ValueBecause Bigg of California gear was produced in limited quantities compared to giants like Dynaco or McIntosh, these units are quite scarce today. Single un-restored amplifiers surface on auction platforms like eBay for roughly $400 USD, whereas a fully operational, factory-matched pair of G-30-U monoblocks can fetch $1,400 USD or more depending on cosmetic and electronic condition. Original documentation is heavily sought after; physical Sams Photofact repair schematics specifically for the G-30-U are still traded among vintage audio restorers.Are you looking to restore an original set of these components, or are you trying to verify the schematic wiring for a repair project?
Auction Location:
27294 Fraser Hwy., Aldergrove, British Columbia, V4W 3P8, Canada
Previewing Details:
Preview: June 13th (10am - 5pm) in-person and video calls.
Previewing Address: 27294 Fraser Hwy, Aldergrove, BC V4W 3P8
Video calls & Facetime previews are available as well via appointment only. To book an appointment please email us at auction@directliquidation.ca with a time between 10am-5pm PDT.
International Shipping is available through 3rd party. See shipping details.
Items must be paid in full on the day of the sale.
Preview: June 13th (10am - 5pm)
Pick ups: June 17th - June 20th (10am - 5pm) Pick up for day 1 items only on the 17th. Day 2 Items will not be available for pickup until the 18th.
Preview and Pick up location: 27294 Fraser Hwy, Aldergrove, BC V4W 3P8
NOTE: ITEMS NOT PICKED UP BY June 20th WILL BECOME THE PROPERTY OF DIRECT LIQUIDATION, AND NO REFUNDS WILL BE ISSUED UNLESS ARRANGEMENTS HAVE BEEN MADE WITH US.
Applicable taxes GST 5% PST 7%
Please make sure to include your PST number if you have one.
Taxes:
| Tax | Rate | Desc. |
| GST |
5% |
GST |
| BPST |
7% |
BC PST |
| NFLD |
5% |
NewFoundland |
| NB |
5% |
New Brunswick |
| NS |
5% |
Nova Scotia |
| PEI |
5% |
Prince Edward Island |
| ON |
5% |
Ontario |
| AB |
5% |
Alberta |
| MB |
5% |
Manitoba |
| NWT |
5% |
Northwest Territories |
| NT |
5% |
Nunavut |
| QC |
5% |
Quebec |
| SK |
5% |
Saskatchewan |
| YK |
5% |
Yukon |
Buyer's Premiums:
| From (Incl.) | To (Excl.) | Premium |
| 0.00 |
Infinite |
18% |
Additional Fees:
Shipping Details:
Shipping will be picked up from the auction June 20 - 22nd
All shipping operations will be outsourced to The UPS Store in Burnaby located at:
4111 Hastings Street
Burnaby, BC
Contact Information:
Steve or Brian
Phone: 604.205.5888
Email: store325@theupsstore.ca
Should you have any questions or require assistance with shipping, please don’t hesitate to reach out to Steve or Brian directly at the contact number above.
Payment Details:
If your picking your items up, you can save 2% by paying cash or debit, NO discount for E-Transfer! All items not paid for within 48 hours of the conclusion of the auction, will be charged on your card. If items are being shipped, your card will be charged twice. Once for your items and again when shipping has been calculated. Invoices will be sent out at the conclusion of the auction.
* 18% Buyer Premium will be applied on purchases.
* Plus Applicable Taxes
* 16% if paying Debit or Cash
* If paying by E-Transfer, please send to: Accounts@Directliquidation.ca
Password: canada
Accepted Payment Methods:
- VISA
- Master Card
- AMEX
- E-Transfer
- Debit
- Cash
Live auctions will be subject to a 18% buyers premium (unless otherwise noted).
Online bidding during the Live Auction is a fast process, and therefore there is no confirmation given - bids will be taken immediately and are irrevocable.
The highest bidder shall be the purchaser upon the completion of bid verification. Bid verification will commence upon the conclusion of a live auction. All winning bidders shall be notified by email within the 24 hour bid verification period.
No bidder shall retract their bid. In the event of a dispute between two or more bidders, the auctioneer, at his/her sole discretion may put the lot up for resale to the highest bidder.
A bidder is deemed to have accepted an item when making a bid.
The auctioneer reserves the right to withdraw any lot at any time prior to the time of sale of such lot.
The auctioneer reserves the right not to accept any bid which is only a partial advance over the preceding bid.
The auctioneer may break down or consolidate any lot or lots at his/her sole discretion.
The Mad Picker assumes no responsibility for any liability once a bid is accepted. It is recommended that purchasers arrange insurance for their purchases in advance.
Except as set out herein, there shall be no warranties or guarantees expressed or implied, statutory or otherwise of any nature.
Please take advantage of in person preview as all items are sold "As Is, Where Is" - catalogs are prepared only as a guide. No sale shall be invalidated by any reason or defect or inaccuracy of description in catalog or otherwise, and no liability shall be borne by the auctioneers by virtue of any such fault or error. All sales final.
All applicable excise and sales taxes shall be added to the purchase price.
The purchaser is not entitled to possession until all items have been paid for in full. In the event that the purchase prices are not paid within the prescribed time, the auctioneer shall have the right to resell such items in whatever manner he/she sees fit without notice to the purchaser. Any shortfall from sale plus commission and expenses thereof shall be paid by the purchaser.
All costs and responsibilities of removal shall be borne by the purchaser/bidder within the time prescribed by the auctioneer. The auctioneer may require proof of adequate insurance from the purchaser. The purchaser/bidder herby indemnifies the auctioneer and the vendor against any and all damages arising from the dismantling and removal of any lots.
Any lots not picked up in the prescribed time shall be deemed as abandoned and property of the auction unless previous arrangements have been made.
If for any reason, The Mad Picker is unable to deliver any or all of an awarded lot or title thereof, the sole liability of The Mad Picker Auctions shall be the refund of any monies paid on the lot.
It is the sole responsibility of the purchaser to remove their items within the prescribed time. The Mad Picker will NOT provide any delivery or transport of any nature for live auction items.