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★真空管測定サービス 4本 2,000円 (タイプ1の測定内容追加)★ 1
 
        

真空管カーブトレーサー

真空管試験機TV-7D/U

各ユニット特性のバラツキを確認出来まる。

特性の良く揃った双三極管のEP-IP特性図

特性の揃っていない双三極管のEP-IP特性図

低い電圧部分のEP-IP特性図

測定真空管に№とGm値/破棄値を貼ります。

Gm測定DATA

EL84のEP-IP特性図

  • Product Quantity
    : 9 / Remaining:9
  • Starting Bid
    :2,000円
  • Highest Bidder
    : / Rating:
  • Listing Date
    :2026年01月13日 20時18分
  • Bidding closes on
    :2026年01月20日 20時18分
  • Auction Number
    :s1214240670
  • Condition
    :New product
  • Automatic Extension
    :No
  • Authentication
    :Yes(Description)
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur

真空管測定サービス (タイプ1の測定内容追加)

測定単価:4本 2,000円 (双三極管は2本2,000円) 最大36本まで

送料:元払いで発送して頂き、測定終了後は着払いでお送りします。

対応出来ない真空管がありますので、

落札前に「出品者への質問」で真空管の品番をお問い合わせ下さい。

入金確認後に測定を行います。

タイプ1のみ実施中。

 

タイプ1. 真空管試験機 TV-7D/Uで行う測定+Gm測定

       (1)ショート・テスト:電極間ショートを試験します。

       (2)整流管のエミッション・テスト(整流管のみ対象)

       (3)増幅管の簡易gmテスト:破棄値に対して測定値が大きければOK

       (4) ガス・テスト(整流管は除く)

      測定に使用するTV-7D/Uは2017/10/20 USAのTV-7キャリブレ業者で校正済み機

       (5) プレート電流及びGM値測定 (ペア取り出来ます。)

 

The

 

真空管試験機 TV-7 によるテスト 

破棄値の例

品名
破棄値
測定値
ショート・テスト
ガステスト
12AT7/ECC81
50
12AU7/ECC82
56
12AX7/ECC83
32
6AU6
58
5751
32
12AY7/6072
32
12BH7/ECC99
30
6AQ8/ECC85
50
6CG7/6FQ7
50
6922
50
396A/407A
26
6DJ8
62
6SN7GT
50
2A3
38
300B
58
5881
25
6550
45
KT66
32
KT88
45
6BM8(P)
56
6BM8(T)
41
6L6系
25
6CA7
30
EL34
30
6V6系
46
7027
25
7591
36
EL84/6BQ5
50
71A
42
  

プレート電流及びGM値測定仕様表(参考例)

品名
Va(V)
Vg2(V)
Vg(V)
Ia(mA) 規格値

Ia(mA) 測定値

Gm(mA/V) 規格値
Gm(mA/V) 測定値
12AT7 /ECC81
250
-2.0
10.0
5.5
12AU7/ECC82
250
-8.5
10.5
2.2
12AX7/ECC83
250
-2.0
1.2
1.6
6AU6
250
150
-1.0
10.8
5.2
12AY7/6072
250
-4.0
3.0
1.75
12BH7/ECC99
250
-10.5
11.5
3.1
6AQ8/ECC85
230
-2.0
10.0
6.0
6CG7/6FQ7
250
-8.0
9.0
2.6
6267
250
140
-2.0
3.0
2.0
396A/407A
150
-2.0
8.2
5.5
6DJ8
90
-1.5
15
12.25
6SL7-GT
250
-2.0
2.3
1.6
6SN7-GT
250
-8.0
9.0
2.6
2A3
250
-45
60
5.25
300B
250
-48
60
※5.0
310B
135
-3
5.5
1.8
6550
250
250
-14
140
11.0
KT66
250
250
-15
85
6.3
KT88
250
250
-15
140
11.5
6BM8(P)
200
200
-16
35
6.4
6BM8(T)
100
0
3.5
2.5
6L6系
250
250
-14
72
6.0
6F6-GT
250
250
-16.5
34
2.5
6CA7
250
265
-14.5
70
11.0
6V6系
250
250
-13
45
3.75
6AR6
250
250
-22.5
77
5.4
6GW8(P)
250
250
-7
36
10
6GW8(T)
250
-1.9
1.2
1.6
PCL86(P)
230
230
-5.7
39
10.5
PCL86(T)
230
-1.7
1.2
1.6
EL84/6BQ5
250
250
-8.4
36
10.0
7189
250
250
-7.3
48
11.3
45
180
-31.5
31
2.13
71A
135
-27
17.3
1.65
R120
250
-35
60
6.4

 

EXCELファイルに記入した真空管測定結果報告書を提出致します。

但し、10本以上ご依頼の場合は報告書をCD-Rに焼いて提出致します。

 

The

 

 

真空管試験機 TV-7 によるエミッション測定

品名
破棄値
測定値
5U4G/5U4GB
40
5AR4/GZ34
40
EZ81/6CA4
40
5Y3G
40
5Y3GT
40

 

測定真空管に№とGm値/破棄値を書き込んだラベルを貼ります。↓(5U4Gはエミッション測定値/破棄値)

 

The

 

 

タイプ2. 現在中止中

 

The

 

       EP-IP特性図を作成します。出力管の性能確認・ペア取りに使えます。↓


The

      

       双三極管のEP-IP特性図を作成します。二ユニットの特性のバラツキの確認が出来ます。↓

The

      

 

       規格表では見られない低い電圧部分のEP-IP特性図を描く事が出来ます。(EP-IP特性写真を参考して下さい。)

 

       プレート電流及びGM値を測定し、規格値に対する%で表示する事で、真空管の劣化具合を判断出来ます。

       ここでのGM値が規格値の60%以上であれば良品と判断出来ると思います。↓

 

The

1本毎、EP-IP特性図とGm測定DATAを提出します。

但し、10本以上ご依頼の場合はEP-IP特性図とGm測定DATAををCD-Rに焼いて提出します。

注記:プレート電圧は最大400Vまで プレート電流は最大200mAまで グリッドバイアス電圧は最大-50Vまで

測定対応真空管はUX-4P・UZ-6P・GT-8P・MT-9P・MT-7Pでこれ以外のソケットには現時点では未対応です。

 

プレート電流及びGM値測定仕様表(参考例)

品名
Va(V)
Vg2(V)
Vg(V)
Ia(mA) 規格値

Ia(mA) 測定値

Gm(mA/V) 規格値
Gm(mA/V) 測定値
12AT7 /ECC81
250
-2.0
10.0
5.5
12AU7/ECC82
250
-8.5
10.5
2.2
12AX7/ECC83
250
-2.0
1.2
1.6
6AU6
250
150
-1.0
10.8
5.2
12AY7/6072
250
-4.0
3.0
1.75
12BH7/ECC99
250
-10.5
11.5
3.1
6AQ8/ECC85
230
-2.0
10.0
6.0
6CG7/6FQ7
250
-8.0
9.0
2.6
6267
250
140
-2.0
3.0
2.0
396A/407A
150
-2.0
8.2
5.5
6DJ8
90
-1.5
15
12.25
6SL7-GT
250
-2.0
2.3
1.6
6SN7-GT
250
-8.0
9.0
2.6
2A3
250
-45
60
5.25
300B
250
-48
60
※5.0
310B
135
-3
5.5
1.8
6550
250
250
-14
140
11.0
KT66
250
250
-15
85
6.3
KT88
250
250
-15
140
11.5
6BM8(P)
200
200
-16
35
6.4
6BM8(T)
100
0
3.5
2.5
6L6系
250
250
-14
72
6.0
6F6-GT
250
250
-16.5
34
2.5
6CA7
250
265
-14.5
70
11.0
6V6系
250
250
-13
45
3.75
6AR6
250
250
-22.5
77
5.4
6GW8(P)
250
250
-7
36
10
6GW8(T)
250
-1.9
1.2
1.6
PCL86(P)
230
230
-5.7
39
10.5
PCL86(T)
230
-1.7
1.2
1.6
EL84/6BQ5
250
250
-8.4
36
10.0
7189
250
250
-7.3
48
11.3
45
180
-31.5
31
2.13
71A
135
-27
17.3
1.65
R120
250
-35
60
6.4

 

★注記:WE300B等、高価なビンテージ管の測定は出来ませんのでご注意下さい。

     真空管の輸送中のトラブル、測定による真空管のトラブルは免責とさせて頂きます。

     対応出来ない真空管がありますので、落札前に「出品者への質問」で真空管の品番をお問い合わせ下さい。

 

 

 

 

(2024年 5月 8日 19時 42分 追加)
注記:Western Electric WE274Bは測定できませんのご注意ください。

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    Product name: ★真空管測定サービス 4本 2,000円 (タイプ1の測定内容追加)★ 1
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my