Picture 1 of 2


Gallery
Picture 1 of 2


Have one to sell?
12DW7 / ECC832, JJ Electronics, Dual Triode Vacuum Tube, Standard Pins, Preamp
US $20.59
Condition:
New
A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details.
More than 10 available40 sold
Oops! Looks like we're having trouble connecting to our server.
Refresh your browser window to try again.
Shipping:
US $7.30 USPS Ground Advantage®.
Located in: Tempe, Arizona, United States
Delivery:
Estimated between Thu, Jul 24 and Mon, Jul 28 to 94104
Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Payments:
Special financing available. See terms and apply now- for PayPal Credit, opens in a new window or tab
Earn up to 5x points when you use your eBay Mastercard®. Learn moreabout earning points with eBay Mastercard
Shop with confidence
Seller assumes all responsibility for this listing.
eBay item number:126614794349
Item specifics
- Condition
- Brand
- JJ Electronics
- MPN
- T-12DW7-JJ
- Compatible Brand
- Any
- Compatible Model
- Any
- Features
- None
- Amplifier Type
- Unknown
- Item Diameter
- 22 mm
- Item Height
- 56.3 mm
- Body Height
- 49.2 mm
- Filament Voltage (U<sub>f</sub>)
- 6.3 / 12.6 V
- Filament Current (I<sub>f</sub>)
- 300 / 150 mA
- Plate Voltage (U<sub>a</sub>)
- ≤ 300 V, 250 V typical
- Plate Current, system I (I<sub>a</sub>)
- 1.2 mA
- Plate Current, system II (I<sub>a</sub>)
- 10.5 mA
- Grid Voltage, system I (U<sub>g</sub>)
- ≥ -50 V, -2 V typical
- Grid Voltage, system II (U<sub>g</sub>)
- ≥ -50 V, -8.5 V typical
- Transconductance, system I (S)
- 1.6 mA/V
- Transconductance, system II (S)
- 2.2 mA/V
- Gain, System I (μ)
- 100
- Gain, System Ii (μ)
- 17
- Internal Resistance, system I (R<sub>i</sub>)
- 62.5 kΩ
- Internal Resistance, system II (R<sub>i</sub>)
- 7.7 kΩ
- Plate Dissipation, system II (W<sub>a</sub>)
- ≤ 2.75 W
- Cathode Current, system II (I<sub>k</sub>)
- ≤ 20 mA
- Heater to cathode voltage, system II (U<sub>k/f</sub>)
- ≤ 180 V
- Heater to cathode resistance, system II (R<sub>k/f</sub>)
- 150 kΩ
- Grid Resistance, system II (R<sub>g</sub>)
- 1 MΩ
- Plate Dissipation, system I (W<sub>a</sub>)
- ≤ 1 W
- Cathode Current, system I (I<sub>k</sub>)
- ≤ 8 mA
- Heater to cathode voltage, system I (U<sub>k/f</sub>)
- ≤ 180 V
- Heater to cathode resistance, system I (R<sub>k/f</sub>)
- 150 kΩ
- Grid Resistance, system I (R<sub>g</sub>)
- 2.2 MΩ
- Type
- Vacuum Tube
- UPC
- 609722123501
Item description from the seller
Popular categories from this store
Seller feedback (59,562)
This item (8)
All items (59,562)
- r***s (525)- Feedback left by buyer.Past 6 monthsVerified purchaseExcellent seller and tube
- e***d (304)- Feedback left by buyer.Past 6 monthsVerified purchaseWorks great thanks
- o***w (2839)- Feedback left by buyer.Past 6 monthsVerified purchaseNice tubes, fast delivery.
- r***d (684)- Feedback left by buyer.Past 6 monthsVerified purchaseAwesome seller. Worked with me on a more detailed description & comparison of products and when received it was packaged very well. It’s a good quality tolex covering at a great price. I will say that delivery took a while but that wasn’t the seller’s fault. Carrier just sat on it for a while based on tracking, but it was worth the wait. Thanks! A+++++Tolex, Light Weight Black Bronco, 54" Wide, Cut to 1 Yard (#126614772956)
- b***r (2065)- Feedback left by buyer.Past 6 monthsVerified purchaseExcellent seller fast shipping everything was as described.Great value and packaging a+++ sellerTurret Board, Blank, 189 Holes, 10-1/8" x 2-5/8", Color: Red (#135183755248)
- d***4 (504)- Feedback left by buyer.Past 6 monthsVerified purchaseVery prompt shipping, very well packaged, exactly as described, excellent e-bay vendor!
Product ratings and reviews
More to explore :
- JJ Electronic Vacuum Tubes,
- JJ Electronic Vintage Preamp Tubes Sockets,
- Triode Consumer Electronics,
- JJ Electronic Vintage NOS Tubes,
- Triode Home Audio Amplifiers & Preamps,
- Vintage Preamps & Tube Preamps,
- McIntosh Vintage Preamps and Tube Preamps,
- Dynaco Vintage Preamps & Tube Preamps,
- Carver Vintage Preamps & Tube Preamps,
- Marantz Vintage Preamps & Tube Preamps