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NOS Siemens D3a / 7721 pair Röhre Post Preamp Phono Tube 2A3 300B
summerlunch
(466)
Private
US $600.00
ApproximatelyEUR 520.79
or Best Offer
Condition:
Last one45 sold
- Buy it nowNOS Siemens D3a / 7721 pair Röhre Post Preamp Phono Tube 2A3 300B
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Collection:
Free collection in person from San Francisco, California, United States.
Postage:
US $9.50 (approx EUR 8.25) USPS First Class®.
Located in: San Francisco, California, United States
Delivery:
Estimated between Wed, 17 Dec and Wed, 31 Dec to 94104
Returns:
No returns accepted.
Payments:
Shop with confidence
About this item
Seller assumes all responsibility for this listing.
eBay item number:163967221649
Item specifics
- Condition
- Country of Origin
- Germany
- Model
- D3a
- Herstellernummer
- D3a
- Marke
- Siemens
- Modell
- D3a
- Produktart
- Pentode
- Type
- Preamp Tubes
- Brand
- Siemens
Item description from the seller
About this seller
summerlunch
100% positive Feedback•146 items sold
Registered as a private sellerThereby, consumer rights stemming from EU consumer protection law do not apply. eBay buyer protection still applies to most purchases.
Seller Feedback (66)
This item (7)
All items (66)
- o***u (59)- Feedback left by buyer.More than a year agoVerified purchasefast shipping. Description says matched pairs. As triodes mu is close Gm not so much and curve plots do not; as pentodes only tested Gm & Ip results between tubes closer.Reply from: summerlunch- Feedback replied to by seller summerlunch.- Feedback replied to by seller summerlunch.Thx for the in depth feedback! These are tested for low noise and mu to work well with commercial phono and mic preamps. Gm is typically within 10% tolerance in the same date/lot. No lengthy burn-in stabilization or curve matching was done, so these may not be ideal for a differential amp where it's important. As far as I’m aware no commercial equipment maker uses the D3A in that application, although maybe they should!
- 5***u- Feedback left by buyer.More than a year agoVerified purchaseExceeded expectations. Measures good and super low noise. Hope they stay that way. Will purchase again if I need another D3A.Reply from: summerlunch- Feedback replied to by seller summerlunch.- Feedback replied to by seller summerlunch.Thx for the feedback! These should stay quiet for a long time. I’ve used the same quad for over 6 years and they sound new. Ia Gm will drift with age, amount of use like all tubes.
- e***i (119)- Feedback left by buyer.More than a year agoVerified purchaseAs described. Excellent sounding tubes.
- t***l (95)- Feedback left by buyer.More than a year agoVerified purchaseVery fast delivery, items as described and well packed. A++NOS Siemens D3a / 7721 matched pair Röhre Post Preamp Phono Tube 2A3 300B (#163967221649)
- n***f (20)- Feedback left by buyer.Past 6 monthsVerified purchaseEverything was perfect. Thank you!Reply from: summerlunch- Feedback replied to by seller summerlunch.- Feedback replied to by seller summerlunch.Happy you liked the knife!Dexter 10" Carbon Steel Chef Knife Model 48910 - Hand Sharpened (#165021783820)
- 7***e (1146)- Feedback left by buyer.More than a year agoVerified purchaseSmooth transaction , delivered as promised….highly recommendedSiemens E88CC, 6922 Gold pin NOS with original boxes (#165423320329)
More to explore:
summerlunch
100% positive Feedback•146 items sold
Registered as a private sellerThereby, consumer rights stemming from EU consumer protection law do not apply. eBay buyer protection still applies to most purchases.
Seller Feedback (66)
This item (7)
All items (66)
- o***u (59)- Feedback left by buyer.More than a year agoVerified purchasefast shipping. Description says matched pairs. As triodes mu is close Gm not so much and curve plots do not; as pentodes only tested Gm & Ip results between tubes closer.Reply from: summerlunch- Feedback replied to by seller summerlunch.- Feedback replied to by seller summerlunch.Thx for the in depth feedback! These are tested for low noise and mu to work well with commercial phono and mic preamps. Gm is typically within 10% tolerance in the same date/lot. No lengthy burn-in stabilization or curve matching was done, so these may not be ideal for a differential amp where it's important. As far as I’m aware no commercial equipment maker uses the D3A in that application, although maybe they should!
- 5***u- Feedback left by buyer.More than a year agoVerified purchaseExceeded expectations. Measures good and super low noise. Hope they stay that way. Will purchase again if I need another D3A.Reply from: summerlunch- Feedback replied to by seller summerlunch.- Feedback replied to by seller summerlunch.Thx for the feedback! These should stay quiet for a long time. I’ve used the same quad for over 6 years and they sound new. Ia Gm will drift with age, amount of use like all tubes.
- e***i (119)- Feedback left by buyer.More than a year agoVerified purchaseAs described. Excellent sounding tubes.
- t***l (95)- Feedback left by buyer.More than a year agoVerified purchaseVery fast delivery, items as described and well packed. A++NOS Siemens D3a / 7721 matched pair Röhre Post Preamp Phono Tube 2A3 300B (#163967221649)
- n***f (20)- Feedback left by buyer.Past 6 monthsVerified purchaseEverything was perfect. Thank you!Reply from: summerlunch- Feedback replied to by seller summerlunch.- Feedback replied to by seller summerlunch.Happy you liked the knife!Dexter 10" Carbon Steel Chef Knife Model 48910 - Hand Sharpened (#165021783820)
- 7***e (1146)- Feedback left by buyer.More than a year agoVerified purchaseSmooth transaction , delivered as promised….highly recommendedSiemens E88CC, 6922 Gold pin NOS with original boxes (#165423320329)