MDB Ventures Preoctal Radio Vacuum Tubes
Type: 45 , 47 , 53 , 59 ( NOS and Used )
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Don't see what you need? Contact us. We have many more tubes that are not yet listed.
We also have new and good used tubes in most other numbers including preoctal, globe/balloon,
octal, loctal/loktal, miniature, subminature, metal, power, transmitter tubes and many more.
MDB Ventures Preoctal Tubes
Qty
Avail | Tube
Type | Price
Each | Tube
Brand | Emission
Strength | Mutual
Conduct |
Desc |
Notes
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| 1 | 45 | $80.00 | RCA Victor | 110% | 2000 / 1650Gm | ST - used (wb) | --- |
| 1 | 45 | $25.00 | Sylvania | 70% | 1100 / 1850Gm | ST - Used fair (L) | --- |
|
| 1 | 47 | $15.00 | Tung-Sol | 80% | 2200 / 2000Gm | ST - used (L) | ribbed black plate - no coat |
| 1 | 47 | $15.00 | Philco | 80% | 2150 / 2000Gm | ST - used (L) | engraved base - ribbed black plate - no coat |
| 1 | 47 | $15.00 | National Union | 85% | 1700 / 2000Gm | ST - used (L) | ribbed black plate - no coat |
|
| 1 | 53 | $12.00 | National Union | 140% / 130% | 1900:1800 / 1500Gm | ST - NOS (OB) | engraved base |
| 1 | 53 | $12.00 | National Union | 110% / 115% | 1550:1650 / 1500Gm | ST - NOS (wb) | engraved base |
| 1 | 53 | $12.00 | National Union | 110% / 110% | 1600:1600 / 1500Gm | ST - NOS (wb) | engraved base |
| 1 | 53 | $12.00 | National Union | 130% / 120% | 1800:1600 / 1500Gm | ST - NOS (wb) | engraved base |
| 1 | 53 | $12.00 | Philco | 120% / 120% | 1700:1800 / 1500Gm | ST - NOS (wb) | engraved base |
| 1 | 53 | $12.00 | Majestic | 110% / 120% | 1500:1500 / 1500Gm | ST - NOS (OB) | engraved base - damaged box |
| 1 | 53 | $12.00 | Majestic | 110% / 115% | 1550:1550 / 1500Gm | ST - NOS (OB) | engraved base - damaged box |
| 1 | 53 | $12.00 | Majestic | 110% / 130% | 1500:1550 / 1500Gm | ST - NOS (OB) | engraved base - deteriorating box |
| 1 | 53 | $12.00 | Majestic | 100% / 130% | 1500:1650 / 1500Gm | ST - NOS (OB) | engraved base - damaged box |
| 1 | 53 | $10.00 | RCA | 120% / 120% | 2000:2000 / 1500Gm | ST - NOS (OB) | --- |
| 1 | 53 | $10.00 | RCA | 130% / 130% | 1950:1950 / 1500Gm | ST - NOS (OB) | --- |
| 1 | 53 | $10.00 | RCA | 130% / 120% | 1900:1750 / 1500Gm | ST - NOS (OB) | box damaged |
| 1 | 53 | $10.00 | RCA | 120% / 130% | 2150:2500 / 1500Gm | ST - NOS (wb) | --- |
| 1 | 53 | $10.00 | RCA Victor | 130% / 130% | 1700:1800 / 1500Gm | ST - NOS (OB) | deteriorating box - cat:312-65 |
| 1 | 53 | $10.00 | National Union | 125% / 130% | 1900:2000 / 1500Gm | ST - NOS (OB) | --- |
| 1 | 53 | $10.00 | National Union | 100% / 100% | 1600:1800 / 1500Gm | ST - NOS (OB) | --- |
| 1 | 53 | $10.00 | Aristocrat | 110% / 120% | 1800:2000 / 1500Gm | ST - NOS (OB) | box damaged |
| 1 | 53 | $10.00 | Sylvania | 140% / 140% | 2000:2000 / 1500Gm | ST - NOS (OB) | damaged box - cat:401-437 |
| 1 | 53 | $10.00 | Sylvania | 120% / 130% | 1850:1900 / 1500Gm | ST - NOS (wb) | engraved base |
| 1 | 53 | $10.00 | Sylvania | 110% / 110% | 1800:1900 / 1500Gm | ST - NOS (wb) | --- |
| 1 | 53 | $10.00 | Sylvania | 130% / 130% | 1600:1750 / 1500Gm | ST - NOS (wb) | --- |
| 1 | 53 | $10.00 | Philco | 130% / 140% | 1800:1900 / 1500Gm | ST - NOS (ob) | damaged box |
| 1 | 53 | $10.00 | Philco | 120% / 120% | 2000:2000 / 1500Gm | ST - NOS (OB) | damaged box |
| 1 | 53 | $10.00 | Tung-Sol | 140% / 140% | 2100:2200 / 1500Gm | ST - NOS (OB) | --- |
| 1 | 53 | $10.00 | Triad | untested | heater ok | ST - NOS (OB) | sealed in box - damaged box - cat:405-28 |
| 1 | 53 | $6.00 | Philco | 125% / 125% | 1400:1500 / 1500Gm | ST - used (rb) | engraved base |
| 1 | 53 | $6.00 | Philco | 100% / 110% | 1700:1750 / 1500Gm | ST - used (rb) | engraved base (pl) |
| 1 | 53 | $6.00 | RCA / Cunningham | 100% / 110% | 1650:1700 / 1500Gm | ST - used (rb) | engraved base |
| 1 | 53 | $6.00 | RCA / Cunningham | 120% / 125% | 1250:1300 / 1500Gm | ST - used (L) | engraved base |
| 1 | 53 | $6.00 | Philco | 120% / 120% | 1300:1300 / 1500Gm | ST - used (L) | engraved base |
| 1 | 53 | $6.00 | National Union | 120% / 120% | 1300:1400 / 1500Gm | ST - used (L) | engraved base |
| 1 | 53 | $6.00 | National Union | 140% / 130% | 1800:2000 / 1500Gm | ST - used (L) | engraved base |
| 1 | 53 | $6.00 | Silvertone | 140% / 140% | 1300:1450 / 1500Gm | ST - used (L) | engraved base |
| 1 | 53 | $5.00 | RCA Radiotron | 120% / 120% | 1550:1550 / 1500Gm | ST - used (L) | --- |
| 1 | 53 | $5.00 | RCA | 100% / 110% | 1700:1900 / 1500Gm | ST - used (rb) | --- |
| 1 | 53 | $5.00 | RCA | 100% / 110% | 1750:1900 / 1500Gm | ST - used (wb) | --- |
| 1 | 53 | $4.00 | National Union | 90% / 110% | 1550:1600 / 1500Gm | ST - used (L) | engraved base |
| 1 | 53 | $3.00 | Philco | 85% / 90% | 1450:1550 / 1500Gm | ST - used (L) | engraved base |
| 1 | 53 | $2.00 | Philco | 75% / 85% | 900:1000 / 1500Gm | ST - used (ob) | damaged box |
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| 1 | 59 | $25.00 | Raytheon | 120% | 2450 / 2000Gm | ST - used (ob) | oval plate - engraved base - four pillar tube - deteriorating box (pl) |
| 1 | 59 | $25.00 | RCA Radiotron | 120% | 2400 / 2000Gm | ST - NOS (wb) | square plate - engraved base |
| 1 | 59 | $20.00 | Raytheon | 110% | 2400 / 2000Gm | ST - NOS (wb) | square plate |
| 1 | 59 | $20.00 | RCA | 120% | 2100 / 2000Gm | ST - NOS (wb) | square plate |
| 1 | 59 | $20.00 | Philco | 120% | 2500 / 2000Gm | ST - NOS (wb) | square plate |
| 1 | 59 | $20.00 | National Union | 130% | 2500 / 2000Gm | ST - NOS (OB) | square plate - damaged box |
| 1 | 59 | $12.00 | Tung-Sol | 110% | 2250 / 2000Gm | ST - used (wb) | engraved base - square plate |
| 1 | 59 | $12.00 | Zenith | 100% | 2000 / 2000Gm | ST - used (L) | engraved base - square plate (pl) |
| 1 | 59 | $10.00 | Sylvania | 110% | 2450 / 2000Gm | ST - used (rb) | square plate |
| 1 | 59 | $7.50 | Arcturus | 90% | 2100 / 2000Gm | ST - used (rb) | round plate - damaged box |
| 1 | 59 | $7.50 | Zenith | 90% | 2050 / 2000Gm | ST - used (rb) | engraved base - square plate - damaged box |
| 1 | 59 | $7.50 | National Union | 90% | 1700 / 2000Gm | ST - used (wb) | square plate |
| 1 | 59 | $7.50 | RCA | 90% | 1600 / 2000Gm | ST - used (wb) | square plate |
Notes:
(OB) = original box, (rb) = relabeled/replacement box, (wb) = white box,
(L) = loose (no box), (pl) = paper label on tube (original or third party)
(H) = tested on Hickok 539A
ST=ST Style, GT=GT Style, JAN = Military
Emission Strength = Percentage of emission measured on Eico 666 tube tester
(Emission Strength = 100% baseline reference, >80%:good, >60%:fair >40%=diode good).
Gm = Mutual conductance measured on Hickok 533 tube tester; Except (H)=tested on Hickok 539A
(Gm = measured/baseline, measured1:measured2/baseline, measured1:measured2/baseline1:baseline2).
How To Order:
Purchasing our preoctal tubes is easy.
Just send us an email indicating the tubes (including quantities) you want.
We will let you know the total price including shipping and handling.
Shipping and Handling Information
Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com
Due to the highly volatile nature of the tube business, all Prices are subject to change without notice.
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Preoctal and Globe/Balloon Vacuum Tube List
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